Differences

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--- x68000:joystick_regs [2017/10/03 15:20] – created neko68k
+++ x68000:joystick_regs [2019/08/27 20:45] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Joystick Registers ======
+The X68000 joystick interface is a [[http://nfggames.com/x68000/Development/datasheets/82C55%20-%20PPI.pdf|µPD82C55]]. The ADPCM sample rate and pan pot are also set through Port C of this device.
 ===== Register List =====
@@ Line 12: / Line 13: @@
 Joystick # 1 (0xE9A001): \\
-Joystick # 2 (0xE9A003):
+Joystick # 2 (0xE9A003): \\
+^MSX 2 Button^
 ^  7  ^  6  ^  5  ^  4  ^  3  ^  2  ^  1  ^  0  ^
 |  0  |  TRG B  |  TRG A  |  0  |  RIGHT  |  LEFT  |  BACK  |  FORWARD  |
+^CPSF and CPSF-MD^
+PC4/PC5 = 0:
+^  7  ^  6  ^  5  ^  4  ^  3  ^  2  ^  1  ^  0  ^
+|  0  |  TRG B  |  TRG A  |  0  |  RIGHT  |  LEFT  |  BACK  |  FORWARD  |
+PC4/PC5 = 1:
+^  7  ^  6  ^  5  ^  4  ^  3  ^  2  ^  1  ^  0  ^
+|  0  |  START  |  TRG C  |  0  |  MODE  |  TRG X  |  TRG Y  |  TRG Z  |
 ---
@@ Line 35: / Line 50: @@
 ---
-Control Word bit set/reset (0xE9A007):
+Control Word - Bit Set/Reset (0xE9A007):
 * Note: When MSB of this register is '0' the function is 8255 Port C line set/reset.
@@ Line 43: / Line 58: @@
 ^Bits^Name^Description^
-|  3~1  |  BITSEL  |Specify the position to manipulate. Each bit corresponds to its respective PCn line on the 8255.|
+|  3~1  |  BITSEL  |Specify the position to manipulate. Values 0~7 correspond to its respective PCn line on the 8255.|
 |  0  |  DATA  |Value to set|
 ---
-Control Word Mode (0xE9A007):
+Control Word - Mode (0xE9A007):
 * Note: When MSB of this register is '1' the function is 8255 mode setting.