Differences

This shows you the differences between two versions of the page.

--- documentations:hardware:mo5 [2014/03/23 14:24] – [Tape] pulkomandy
+++ documentations:hardware:mo5 [2015/03/01 17:26] – pulkomandy
@@ Line 12: / Line 12: @@
 ==== Boot screen ====
+{{ :documentations:hardware:thomson_mo5_ss_boot.gif?nolink |}}
 ===== External links =====
 ====== Specifications ======
 <columns>
 ==== Frequencies ====
   * [[documentations:devices:6809|6809E CPU]] at 1MHz
-  * [[documentations:devices:gate.array|Gate Array]] at 16MHz
+  * [[documentations:devices:gate.arrays#MO5|Gate Array]] at 16MHz
   * 50Hz interrupt
 ==== Video ====
@@ Line 47: / Line 49: @@
 ====== Connectors ======
-  * Lightpen
-  * Tape
-  * 17V input
-  * SCART Video output
-  * Expansion port
-  * Cartridge port
 ==== Lightpen ====
@@ Line 72: / Line 68: @@
 ==== Expansion port ====
 ==== Cartridge port ====
+<columns>
+^A (Front)^Pin number^B (Back)^
+|A14    |1 |A15|
+|+5V    |2 |A12|
+|PRCART |3 |A11|
+|A13    |4 |A10|
+|NCSCART|5 |A9|
+|D7     |6 |A8|
+|D6     |7 |A7|
+|D5     |8 |A6|
+|D4     |9 |A5|
+|D3     |10|A4|
+|D2     |11|A3|
+|D1     |12|A2|
+|D0     |13|A1|
+|GND    |14|A1|
+|R/-W   |15|E |
+<newcolumn>
+  * PRCART is pulled low by the cartridge to hide the BASIC ROM
+  * NCSCART is the "chip select" line for the cartridge space. It is active low, for all access to the B000-EFFF memory range.
+  * On first revision MO5, the A14, A15, and E signals are missing, making it impossible to use the RAM expansion.
+</columns>
 ====== Keyboard ======
 ===== Layout =====