ramcard.sch@ f8899ff

main

Last change on this file since f8899ff was 0558b56, checked in by PulkoMandy <pulkomandy@…>, 19 months ago

Cleanup and fixes in Gemini.

No functional changes.
A bit extra clearance on some tracks below the connector.
Update PDF export of schematics.

Property mode set to 100644

File size: 21.3 KB

Line
1	EESchema Schematic File Version 4
2	EELAYER 30 0
3	EELAYER END
4	$Descr User 10000 9054
5	encoding utf-8
6	Sheet 1 1
7	Title "Gemini 2020"
8	Date "2020-11-17"
9	Rev "1.0"
10	Comp "PulkoTronics"
11	Comment1 "2MB RAM expansion for Amstrad CPC 6128/Plus"
12	Comment2 ""
13	Comment3 ""
14	Comment4 ""
15	$EndDescr
16	Wire Wire Line
17	1050 2050 850 2050
18	Wire Wire Line
19	1050 1850 850 1850
20	Wire Wire Line
21	1550 2750 1700 2750
22	Wire Wire Line
23	1550 2650 1700 2650
24	Wire Wire Line
25	1550 2550 1700 2550
26	Wire Wire Line
27	1550 2450 1700 2450
28	Wire Wire Line
29	1550 2350 1700 2350
30	Wire Wire Line
31	1550 2250 1700 2250
32	Wire Wire Line
33	1550 1650 1700 1650
34	Wire Wire Line
35	1550 1450 1700 1450
36	Wire Wire Line
37	1550 1250 1700 1250
38	Wire Wire Line
39	1550 1050 1700 1050
40	Wire Wire Line
41	1550 1950 1850 1950
42	Wire Wire Line
43	1550 1750 1850 1750
44	Wire Wire Line
45	1550 3150 1700 3150
46	Wire Wire Line
47	1550 2950 1700 2950
48	Wire Wire Line
49	1050 850 850 850
50	Wire Wire Line
51	1050 2550 850 2550
52	Wire Wire Line
53	1050 2750 850 2750
54	Wire Wire Line
55	800 3350 800 3250
56	Wire Wire Line
57	800 3250 1050 3250
58	Wire Wire Line
59	800 2350 1050 2350
60	Wire Wire Line
61	800 2450 1050 2450
62	Wire Wire Line
63	1050 3150 850 3150
64	Wire Wire Line
65	1050 2850 850 2850
66	Wire Wire Line
67	1050 2650 850 2650
68	Wire Wire Line
69	1050 2250 850 2250
70	Wire Wire Line
71	1550 850 1700 850
72	Wire Wire Line
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74	Wire Wire Line
75	1550 3250 1700 3250
76	Wire Wire Line
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78	Wire Wire Line
79	1550 1850 1850 1850
80	Wire Wire Line
81	1550 2050 1850 2050
82	Wire Wire Line
83	1550 950 1700 950
84	Wire Wire Line
85	1550 1150 1700 1150
86	Wire Wire Line
87	1550 1350 1700 1350
88	Wire Wire Line
89	1550 1550 1700 1550
90	Wire Wire Line
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92	Wire Wire Line
93	1050 1050 900 1050
94	Wire Wire Line
95	1050 1150 900 1150
96	Wire Wire Line
97	1050 1250 900 1250
98	Wire Wire Line
99	1050 1350 900 1350
100	Wire Wire Line
101	1050 1450 900 1450
102	Wire Wire Line
103	1050 1550 900 1550
104	Wire Wire Line
105	1050 1650 900 1650
106	Wire Wire Line
107	850 2150 1050 2150
108	Wire Wire Line
109	1550 2850 1750 2850
110	Wire Wire Line
111	1550 2150 1700 2150
112	Wire Wire Line
113	1050 1750 850 1750
114	Wire Wire Line
115	1050 1950 850 1950
116	NoConn ~ 1700 2650
117	NoConn ~ 1700 2550
118	NoConn ~ 1700 2450
119	NoConn ~ 1700 2250
120	$Comp
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124	F 0 "#PWR013" H 850 2250 30 0001 C CNN
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134	A14
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136	A13
137	Text Label 1700 1050 0 60 ~ 0
138	A12
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140	A11
141	Text Label 1700 1150 0 60 ~ 0
142	A10
143	Text Label 900 1250 0 60 ~ 0
144	A9
145	Text Label 1700 1250 0 60 ~ 0
146	A8
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148	A7
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150	A6
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152	A5
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154	A4
155	Text Label 900 1550 0 60 ~ 0
156	A3
157	Text Label 1700 1550 0 60 ~ 0
158	A2
159	Text Label 900 1650 0 60 ~ 0
160	A1
161	Text Label 1700 1650 0 60 ~ 0
162	A0
163	Text Label 850 1750 0 60 ~ 0
164	D7
165	Text Label 850 1850 0 60 ~ 0
166	D5
167	Text Label 850 1950 0 60 ~ 0
168	D3
169	Text Label 850 2050 0 60 ~ 0
170	D1
171	Text Label 1700 1750 0 60 ~ 0
172	D6
173	Text Label 1700 1850 0 60 ~ 0
174	D4
175	Text Label 1700 1950 0 60 ~ 0
176	D2
177	Text Label 1700 2050 0 60 ~ 0
178	D0
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180	NoConn ~ 1700 3150
181	NoConn ~ 1700 3250
182	NoConn ~ 850 850
183	NoConn ~ 850 2250
184	NoConn ~ 850 2550
185	NoConn ~ 850 2650
186	NoConn ~ 850 2750
187	NoConn ~ 850 2950
188	NoConn ~ 850 3150
189	Text Notes 2060 1250 1 60 ~ 0
190	\ncpc connector
191	Wire Wire Line
192	1700 850 1700 650
193	Wire Wire Line
194	1700 650 1600 650
195	NoConn ~ 1700 2350
196	Text Label 7350 1950 2 50 ~ 0
197	D0
198	Text Label 7350 2050 2 50 ~ 0
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200	Text Label 7350 2350 2 50 ~ 0
201	D2
202	Text Label 7350 2450 2 50 ~ 0
203	D3
204	Text Label 8850 2550 0 50 ~ 0
205	D4
206	Text Label 8850 2450 0 50 ~ 0
207	D5
208	Text Label 8850 2150 0 50 ~ 0
209	D6
210	Text Label 8850 2050 0 50 ~ 0
211	D7
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213	A0
214	Text Label 7350 1650 2 50 ~ 0
215	A1
216	Text Label 7350 1550 2 50 ~ 0
217	A2
218	Text Label 7350 1450 2 50 ~ 0
219	A3
220	Text Label 7350 1350 2 50 ~ 0
221	A4
222	Text Label 8850 1450 0 50 ~ 0
223	A5
224	Text Label 8850 1550 0 50 ~ 0
225	A6
226	Text Label 8850 1650 0 50 ~ 0
227	A7
228	Text Label 8850 1950 0 50 ~ 0
229	A8
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231	A9
232	Text Label 8850 2750 0 50 ~ 0
233	A10
234	Text Label 8850 2850 0 50 ~ 0
235	A11
236	Text Label 8850 2950 0 50 ~ 0
237	A12
238	Text Label 8850 3050 0 50 ~ 0
239	A13
240	Text Label 8850 3150 0 50 ~ 0
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243	XA16
244	Text Label 4700 3600 0 50 ~ 0
245	XA17
246	Text Label 4700 3700 0 50 ~ 0
247	XA18
248	Text Label 4700 3800 0 50 ~ 0
249	XA19
250	Text Label 4700 3900 0 50 ~ 0
251	XA20
252	Text Label 3700 3700 2 50 ~ 0
253	D5
254	Text Label 3700 3600 2 50 ~ 0
255	D4
256	Text Label 3700 3500 2 50 ~ 0
257	D3
258	Text Label 2200 3700 2 50 ~ 0
259	A9
260	Text Label 2200 4250 2 50 ~ 0
261	A8
262	Text Label 3700 4100 2 50 ~ 0
263	~MMR
264	Text Label 4300 1200 0 50 ~ 0
265	~MMR
266	Text Label 2700 2100 2 50 ~ 0
267	A15
268	Text Label 2700 2000 2 50 ~ 0
269	A14
270	Text Label 4300 1400 0 50 ~ 0
271	XA14
272	Text Label 4300 1500 0 50 ~ 0
273	XA15
274	Text Label 4300 1600 0 50 ~ 0
275	RAMDIS
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277	D0
278	Text Label 3700 3300 2 50 ~ 0
279	D1
280	Text Label 3700 3400 2 50 ~ 0
281	D2
282	Text Label 2700 1300 2 50 ~ 0
283	D6
284	Text Label 2700 1200 2 50 ~ 0
285	D7
286	Text Label 4700 3200 0 50 ~ 0
287	XD0
288	Text Label 4700 3300 0 50 ~ 0
289	XD1
290	Text Label 4700 3400 0 50 ~ 0
291	XD2
292	Text Label 2700 1900 2 50 ~ 0
293	XD0
294	Text Label 2700 1800 2 50 ~ 0
295	XD1
296	Text Label 2700 1700 2 50 ~ 0
297	XD2
298	Text Label 7350 3150 2 50 ~ 0
299	XA15
300	Text Label 7350 3050 2 50 ~ 0
301	XA16
302	Text Label 7350 2950 2 50 ~ 0
303	XA17
304	Text Label 7350 2850 2 50 ~ 0
305	XA18
306	Text Label 7350 2650 2 50 ~ 0
307	~RAMWR
308	Text Label 2700 1400 2 50 ~ 0
309	D5
310	Text Label 2700 1500 2 50 ~ 0
311	D4
312	Text Label 2700 1600 2 50 ~ 0
313	D3
314	Text Notes 4600 1100 0 50 ~ 0
315	~MMR~ = ~IORQ~ + ~WR~ + A15 + !A14 + !D6 + !D7
316	Text Label 8850 1850 0 50 ~ 0
317	RAMDIS
318	Text Notes 4600 1800 0 50 ~ 0
319	XA14 = A14 * !XD2 + XD0 * XD2
320	Text Notes 4600 2050 0 50 ~ 0
321	XA15 = A15 * !XD2 + XD1 * XD2\n\n~CRTC~ = ~IORQ~ + ~WR~ + A14
322	Text Notes 4600 2350 0 50 ~ 0
323	RAMDIS = (!XD2 * XD0 * A15 * A14)\n + (!XD2 * XD1 * !XD0)\n + (XD2 * !A15 * A14)
324	Text Notes 4600 1450 0 50 ~ 0
325	RMR2 = UNLOCK * !~IORQ~ * !~WR~ * !A15 * A14 * D7 * !D6 * D5\nASIC.R = RMR2 * (D4 * D3) * ~RESET\n + !RMR2 * ASIC * ~RESET
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327	~MREQ
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333	F 1 "VCC" H 4200 3000 30 0000 C CNN
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335	F 3 "" H 4200 2900 50 0001 C CNN
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337	1 0 0 -1
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346	F 3 "" H 4300 1000 50 0001 C CNN
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355	F 1 "VCC" H 8100 900 30 0000 C CNN
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357	F 3 "" H 8100 800 50 0001 C CNN
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368	F 3 "" H 2900 6150 50 0001 C CNN
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370	1 0 0 -1
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372	$Comp
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377	F 1 "C" H 1815 6255 50 0000 L CNN
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379	F 3 "~" H 1700 6300 50 0001 C CNN
380	1 1700 6300
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448	~RAMWR~ = ~WR~ + (ASIC * !A15 * A14)
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504	Wire Wire Line
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540	F 3 "~" H 950 6300 50 0001 C CNN
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574	F 3 "" H 4200 4500 50 0001 C CNN
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576	1 0 0 -1
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596	F 3 "" H 2900 6500 50 0001 C CNN
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618	F 3 "" H 1600 650 50 0001 C CNN
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629	F 3 "~" H 1250 2050 50 0001 C CNN
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640	F 3 "" H 2700 2300 50 0001 C CNN
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674	ASIC
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710	8000 6050 8000 6350
711	Wire Wire Line
712	5600 6350 7200 6350
713	Wire Wire Line
714	5600 5150 5600 6350
715	Wire Wire Line
716	7200 4050 7500 4050
717	Text Label 5300 4450 0 50 ~ 0
718	A9
719	Text Label 5300 4350 0 50 ~ 0
720	A8
721	Text Label 5300 4150 0 50 ~ 0
722	~CRTC
723	Text Label 5300 4050 0 50 ~ 0
724	CLKIN
725	Wire Wire Line
726	7200 4550 8000 4550
727	Wire Wire Line
728	7200 4450 8000 4450
729	Wire Wire Line
730	7200 4350 8000 4350
731	Text Label 5300 4250 0 50 ~ 0
732	NCO
733	Text Label 7200 4250 0 50 ~ 0
734	UNLOCK
735	Wire Wire Line
736	5300 4650 5600 4650
737	Wire Wire Line
738	5300 4250 5600 4250
739	$Comp
740	L ATF22v10:ATF22V10C-10SU U3
741	U 1 1 6192C385
742	P 5600 4050
743	F 0 "U3" H 6400 4437 60 0000 C CNN
744	F 1 "ATF22V10C-10SU" H 6400 4331 60 0000 C CNN
745	F 2 "Housings_SOIC:SOIC-24W_7.5x15.4mm_Pitch1.27mm" H 6400 4290 60 0001 C CNN
746	F 3 "" H 5600 4050 60 0000 C CNN
747	1 5600 4050
748	1 0 0 -1
749	$EndComp
750	Text Label 5300 4650 0 50 ~ 0
751	~RESET
752	Wire Wire Line
753	7850 5850 8000 5850
754	Wire Wire Line
755	7850 5750 8000 5750
756	Wire Wire Line
757	7850 5650 8000 5650
758	Wire Wire Line
759	7850 5550 8000 5550
760	Wire Wire Line
761	7850 5450 8000 5450
762	Wire Wire Line
763	7850 5350 8000 5350
764	Wire Wire Line
765	7850 5250 8000 5250
766	Wire Wire Line
767	7850 5150 8000 5150
768	Text Label 7850 5150 0 50 ~ 0
769	D7
770	Text Label 7850 5250 0 50 ~ 0
771	D6
772	Text Label 7850 5350 0 50 ~ 0
773	D5
774	Text Label 7850 5450 0 50 ~ 0
775	D4
776	Text Label 7850 5850 0 50 ~ 0
777	D3
778	Text Label 7850 5750 0 50 ~ 0
779	D2
780	Text Label 7850 5650 0 50 ~ 0
781	D1
782	Text Label 7850 5550 0 50 ~ 0
783	D0
784	Text Label 7600 4250 0 50 ~ 0
785	PRBS7
786	Text Label 7600 4350 0 50 ~ 0
787	PRBS6
788	Text Label 7600 4450 0 50 ~ 0
789	PRBS5
790	Text Label 7600 4550 0 50 ~ 0
791	PRBS4
792	Text Label 7200 4950 0 50 ~ 0
793	PRBS0
794	Text Label 7200 4850 0 50 ~ 0
795	PRBS1
796	Text Label 7200 4750 0 50 ~ 0
797	PRBS2
798	Text Label 7200 4650 0 50 ~ 0
799	PRBS3
800	Wire Wire Line
801	7500 4050 8300 4050
802	Wire Wire Line
803	7750 4950 8000 4950
804	Wire Wire Line
805	7750 4850 8000 4850
806	Wire Wire Line
807	7750 4750 8000 4750
808	Wire Wire Line
809	7750 4650 8000 4650
810	Text Label 7750 4950 0 50 ~ 0
811	PRBS3
812	Text Label 7750 4850 0 50 ~ 0
813	PRBS2
814	Text Label 7750 4750 0 50 ~ 0
815	PRBS1
816	Text Label 7750 4650 0 50 ~ 0
817	PRBS0
818	Text Label 9000 4250 0 50 ~ 0
819	NCO
820	Wire Wire Line
821	8300 4050 8300 3950
822	Wire Wire Line
823	8300 3950 8500 3950
824	$Comp
825	L 74xx:74LS688 U5
826	U 1 1 616423BA
827	P 8500 5150
828	F 0 "U5" H 9044 5196 50 0000 L CNN
829	F 1 "74LS688" H 9044 5105 50 0000 L CNN
830	F 2 "Housings_SOIC:SOIC-20W_7.5x12.8mm_Pitch1.27mm" H 8500 5150 50 0001 C CNN
831	F 3 "http://www.ti.com/lit/gpn/sn74LS688" H 8500 5150 50 0001 C CNN
832	1 8500 5150
833	1 0 0 -1
834	$EndComp
835	Text Label 4300 1900 0 50 ~ 0
836	RMR2
837	Wire Wire Line
838	5300 4150 5600 4150
839	Text Notes 650 5950 0 50 ~ 0
840	STATE14 = !(!PRBS0 * PRBS1 * PRBS2 * PRBS3 * !PRBS4 * PRBS5 * PRBS6 * PRBS7)\nUNLOCK.R = (UNLOCK * STATE14)\n + (!UNLOCK * PRBS0 * PRBS1 * PRBS2 * PRBS3 * PRBS4 * PRBS5 * PRBS6 * PRBS7)\n\nPRBS0.R = PRBS1 + NCO\nPRBS1.R = PRBS2 + NCO\nPRBS2.R = PRBS3 + NCO\nPRBS3.R = (PRBS0 XOR PRBS1) + NCO = (PRBS0* !PRBS1) + (!PRBS0 * PRBS1) + NCO\nPRBS4.R = PRBS5 + NCO\nPRBS5.R = PRBS6 + NCO\nPRBS6.R = PRBS7 + NCO\nPRBS7.R = (PRBS4 XOR PRBS7) + NCO = (PRBS4* !PRBS7) + (!PRBS4 * PRBS7) + NCO\n\nCLKOUT = ~CRTC~ + A9 + A8\nAR=!~RESET
841	Wire Wire Line
842	5300 4050 5600 4050
843	Wire Wire Line
844	7200 5050 6400 5050
845	Wire Wire Line
846	6400 5050 6400 4050
847	Wire Wire Line
848	6400 4050 5600 4050
849	Connection ~ 5600 4050
850	Wire Wire Line
851	5300 4350 5600 4350
852	Wire Wire Line
853	5300 4450 5600 4450
854	Text Label 7200 5050 0 50 ~ 0
855	CLKOUT
856	Wire Wire Line
857	8000 4250 7600 4250
858	Wire Wire Line
859	7200 4150 7600 4150
860	Wire Wire Line
861	7600 4150 7600 4250
862	$Comp
863	L Device:LED D1
864	U 1 1 61E50A5C
865	P 5750 2800
866	F 0 "D1" H 5743 3017 50 0000 C CNN
867	F 1 "LED" H 5743 2926 50 0000 C CNN
868	F 2 "LEDs:LED_D5.0mm" H 5750 2800 50 0001 C CNN
869	F 3 "~" H 5750 2800 50 0001 C CNN
870	1 5750 2800
871	-1 0 0 1
872	$EndComp
873	$Comp
874	L Device:LED D2
875	U 1 1 61E511A8
876	P 5750 3200
877	F 0 "D2" H 5743 3417 50 0000 C CNN
878	F 1 "LED" H 5743 3326 50 0000 C CNN
879	F 2 "LEDs:LED_D5.0mm" H 5750 3200 50 0001 C CNN
880	F 3 "~" H 5750 3200 50 0001 C CNN
881	1 5750 3200
882	-1 0 0 1
883	$EndComp
884	$Comp
885	L Device:R R1
886	U 1 1 61E51890
887	P 6050 2800
888	F 0 "R1" V 5843 2800 50 0000 C CNN
889	F 1 "150R" V 5934 2800 50 0000 C CNN
890	F 2 "Resistors_SMD:R_0805" V 5980 2800 50 0001 C CNN
891	F 3 "~" H 6050 2800 50 0001 C CNN
892	1 6050 2800
893	0 1 1 0
894	$EndComp
895	$Comp
896	L Device:R R2
897	U 1 1 61E51CEA
898	P 6050 3200
899	F 0 "R2" V 5843 3200 50 0000 C CNN
900	F 1 "150R" V 5934 3200 50 0000 C CNN
901	F 2 "Resistors_SMD:R_0805" V 5980 3200 50 0001 C CNN
902	F 3 "~" H 6050 3200 50 0001 C CNN
903	1 6050 3200
904	0 1 1 0
905	$EndComp
906	Wire Wire Line
907	6200 3200 6200 2800
908	Text Label 5600 2800 2 50 ~ 0
909	UNLOCK
910	Text Label 5600 3200 2 50 ~ 0
911	ASIC
912	$Comp
913	L power:GND #PWR0101
914	U 1 1 61E5800A
915	P 6200 3200
916	F 0 "#PWR0101" H 6200 2950 50 0001 C CNN
917	F 1 "GND" H 6205 3027 50 0000 C CNN
918	F 2 "" H 6200 3200 50 0001 C CNN
919	F 3 "" H 6200 3200 50 0001 C CNN
920	1 6200 3200
921	1 0 0 -1
922	$EndComp
923	Connection ~ 6200 3200
924	Text Label 800 2350 0 50 ~ 0
925	~IORQ
926	Text Label 800 2450 0 50 ~ 0
927	~WR
928	$Comp
929	L pspice:DIODE D3
930	U 1 1 6165927E
931	P 600 3700
932	F 0 "D3" V 646 3572 50 0000 R CNN
933	F 1 "DIODE" V 555 3572 50 0000 R CNN
934	F 2 "Diodes_SMD:D_1206" H 600 3700 50 0001 C CNN
935	F 3 "~" H 600 3700 50 0001 C CNN
936	1 600 3700
937	0 -1 -1 0
938	$EndComp
939	Wire Wire Line
940	600 3500 600 3050
941	Wire Wire Line
942	600 3050 1050 3050
943	Wire Wire Line
944	600 4050 600 3900
945	Text Label 1700 2950 0 50 ~ 0
946	~RAMRD
947	Text Label 8850 1750 0 50 ~ 0
948	~RAMRD
949	Text Label 1700 2150 0 50 ~ 0
950	~MREQ
951	$Comp
952	L 74xx:74AHCT273 U2
953	U 1 1 61EB5442
954	P 4200 3700
955	F 0 "U2" H 4350 4500 50 0000 C CNN
956	F 1 "74AHCT273" H 4450 4400 50 0000 C CNN
957	F 2 "Housings_SOIC:SOIC-20W_7.5x12.8mm_Pitch1.27mm" H 4200 3700 50 0001 C CNN
958	F 3 "https://assets.nexperia.com/documents/data-sheet/74AHC_AHCT273.pdf" H 4200 3700 50 0001 C CNN
959	1 4200 3700
960	1 0 0 -1
961	$EndComp
962	Text Label 3500 4200 0 50 ~ 0
963	~RESET
964	Wire Wire Line
965	3500 4200 3700 4200
966	Text Label 3700 3900 2 50 ~ 0
967	MA9
968	Text Label 3700 3800 2 50 ~ 0
969	MA8
970	$Comp
971	L Device:Jumper_NC_Dual JP1
972	U 1 1 6342DE81
973	P 3100 3800
974	F 0 "JP1" H 3100 4039 50 0000 C CNN
975	F 1 "Jumper_NC_Dual" H 3100 3948 50 0000 C CNN
976	F 2 "Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm" H 3100 3800 50 0001 C CNN
977	F 3 "~" H 3100 3800 50 0001 C CNN
978	1 3100 3800
979	-1 0 0 -1
980	$EndComp
981	Wire Wire Line
982	2600 3800 2850 3800
983	Wire Wire Line
984	2000 3900 2000 3400
985	Wire Wire Line
986	2000 3400 3500 3400
987	Wire Wire Line
988	3500 3400 3500 3800
989	Wire Wire Line
990	3500 3800 3350 3800
991	Connection ~ 2000 3900
992	Wire Wire Line
993	3100 3900 3700 3900
994	$EndSCHEMATC

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source: avrstuff/CPC stuff/gemini/ramcard.sch@ f8899ff

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