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-rw-r--r--src/emu/cpu/pps4/pps4.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/emu/cpu/pps4/pps4.c b/src/emu/cpu/pps4/pps4.c
index 98a9bfdb6a6..ddcd2501189 100644
--- a/src/emu/cpu/pps4/pps4.c
+++ b/src/emu/cpu/pps4/pps4.c
@@ -27,6 +27,33 @@
*
* Note: External clock should be divided by 18 (not implemented).
*
+ * Pinouts:
+ * 10660 11660
+ *
+ * +--------\ /--------+ +--------\ /--------+
+ * 1 [| DIB-3 ++ DIA-3 |] 42 1 [| DIO-4 DIO-3 |] 42
+ * 2 [-| DIA-2 DIB-4 |-] 41 2 [-| DIA-4 DIO-2 |-] 41
+ * 3 [| DIB-2 DIA-4 |] 40 3 [| DIA-3 DIO-1 |] 40
+ * 4 [-| DIA-1 NC |-] 39 4 [-| DIA-2 Vdd |-] 39
+ * 5 [| DIB-1 A/B-1 |] 38 5 [| DIA-1 A/B-1 |] 38
+ * 6 [-| Vdd A/B-2 |-] 37 6 [-| I/O-5 A/B-2 |-] 37
+ * 7 [| I/D-5 A/B-3 |] 36 7 [| I/O-6 A/B-3 |] 36
+ * 8 [-| I/D-6 A/B-4 |-] 35 8 [-| I/O-7 A/B-4 |-] 35
+ * 9 [| I/D-7 A/B-5 |] 34 9 [| I/O-8 A/B-5 |] 34
+ * 10 [-| I/D-8 A/B-6 |-] 33 10 [-| I/O-1 A/B-6 |-] 33
+ * 11 [| I/D-1 A/B-7 |] 32 11 [| I/O-4 A/B-7 |] 32
+ * 12 [-| I/D-4 A/B-8 |-] 31 12 [-| I/O-2 A/B-8 |-] 31
+ * 13 [| I/D-2 A/B-9 |] 30 13 [| I/O-3 A/B-9 |] 30
+ * 14 [-| I/D-3 A/B-10 |-] 29 14 [-| W/IO A/B-10 |-] 29
+ * 15 [| W/IO A/B-11 |] 28 15 [| CLK ~B A/B-11 |] 28
+ * 16 [-| CLK ~B A/B-12 |-] 27 16 [-| CLK A A/B-12 |-] 27
+ * 17 [| CLK A NC |] 26 17 [| VCLK DO-4 |] 26
+ * 18 [-| PO DO-3 |-] 25 18 [-| Xtal1 DO-3 |-] 25
+ * 19 [| SPO DO-4 |] 24 19 [| Xtal2 DO-2 |] 24
+ * 20 [-| DO-2 NC |-] 23 20 [-| Vss DO-1 |-] 23
+ * 21 [| DO-1 Vss |] 22 21 [| SPO TC1-14 |] 22
+ * +--------------------+ +--------------------+
+ *
*****************************************************************************/
#include "emu.h"
#include "debugger.h"