--- /dev/null
+Amiga 4-joystick parport extension
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Parallel port pins:
+
+ (2) - Up1 (6) - Up2
+ (3) - Down1 (7) - Down2
+ (4) - Left1 (8) - Left2
+ (5) - Right1 (9) - Right2
+(13) - Fire1 (11) - Fire2
+(18) - Gnd1 (18) - Gnd2
+
+Amiga digital joystick pinout
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+(1) - Up
+(2) - Down
+(3) - Left
+(4) - Right
+(5) - n/c
+(6) - Fire button
+(7) - +5V (50mA)
+(8) - Gnd
+(9) - Thumb button
+
+Amiga mouse pinout
+~~~~~~~~~~~~~~~~~~
+(1) - V-pulse
+(2) - H-pulse
+(3) - VQ-pulse
+(4) - HQ-pulse
+(5) - Middle button
+(6) - Left button
+(7) - +5V (50mA)
+(8) - Gnd
+(9) - Right button
+
+Amiga analog joystick pinout
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+(1) - Top button
+(2) - Top2 button
+(3) - Trigger button
+(4) - Thumb button
+(5) - Analog X
+(6) - n/c
+(7) - +5V (50mA)
+(8) - Gnd
+(9) - Analog Y
+
+Amiga lightpen pinout
+~~~~~~~~~~~~~~~~~~~~~
+(1) - n/c
+(2) - n/c
+(3) - n/c
+(4) - n/c
+(5) - Touch button
+(6) - /Beamtrigger
+(7) - +5V (50mA)
+(8) - Gnd
+(9) - Stylus button
+
+-------------------------------------------------------------------------------
+
+NAME rev ADDR type chip Description
+JOY0DAT 00A R Denise Joystick-mouse 0 data (left vert, horiz)
+JOY1DAT 00C R Denise Joystick-mouse 1 data (right vert,horiz)
+
+ These addresses each read a 16 bit register. These in turn
+ are loaded from the MDAT serial stream and are clocked in on
+ the rising edge of SCLK. MLD output is used to parallel load
+ the external parallel-to-serial converter.This in turn is
+ loaded with the 4 quadrature inputs from each of two game
+ controller ports (8 total) plus 8 miscellaneous control bits
+ which are new for LISA and can be read in upper 8 bits of
+ LISAID.
+ Register bits are as follows:
+ Mouse counter usage (pins 1,3 =Yclock, pins 2,4 =Xclock)
+
+ BIT# 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
+JOY0DAT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0
+JOY1DAT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0
+
+ 0=LEFT CONTROLLER PAIR, 1=RIGHT CONTROLLER PAIR.
+ (4 counters total). The bit usage for both left and right
+ addresses is shown below. Each 6 bit counter (Y7-Y2,X7-X2) is
+ clocked by 2 of the signals input from the mouse serial
+ stream. Starting with first bit received:
+
+ +-------------------+-----------------------------------------+
+ | Serial | Bit Name | Description |
+ +--------+----------+-----------------------------------------+
+ | 0 | M0H | JOY0DAT Horizontal Clock |
+ | 1 | M0HQ | JOY0DAT Horizontal Clock (quadrature) |
+ | 2 | M0V | JOY0DAT Vertical Clock |
+ | 3 | M0VQ | JOY0DAT Vertical Clock (quadrature) |
+ | 4 | M1V | JOY1DAT Horizontal Clock |
+ | 5 | M1VQ | JOY1DAT Horizontal Clock (quadrature) |
+ | 6 | M1V | JOY1DAT Vertical Clock |
+ | 7 | M1VQ | JOY1DAT Vertical Clock (quadrature) |
+ +--------+----------+-----------------------------------------+
+
+ Bits 1 and 0 of each counter (Y1-Y0,X1-X0) may be
+ read to determine the state of the related input signal pair.
+ This allows these pins to double as joystick switch inputs.
+ Joystick switch closures can be deciphered as follows:
+
+ +------------+------+---------------------------------+
+ | Directions | Pin# | Counter bits |
+ +------------+------+---------------------------------+
+ | Forward | 1 | Y1 xor Y0 (BIT#09 xor BIT#08) |
+ | Left | 3 | Y1 |
+ | Back | 2 | X1 xor X0 (BIT#01 xor BIT#00) |
+ | Right | 4 | X1 |
+ +------------+------+---------------------------------+
+
+-------------------------------------------------------------------------------
+
+NAME rev ADDR type chip Description
+JOYTEST 036 W Denise Write to all 4 joystick-mouse counters at once.
+
+ Mouse counter write test data:
+ BIT# 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
+ JOYxDAT Y7 Y6 Y5 Y4 Y3 Y2 xx xx X7 X6 X5 X4 X3 X2 xx xx
+ JOYxDAT Y7 Y6 Y5 Y4 Y3 Y2 xx xx X7 X6 X5 X4 X3 X2 xx xx
+
+-------------------------------------------------------------------------------
+
+NAME rev ADDR type chip Description
+POT0DAT h 012 R Paula Pot counter data left pair (vert, horiz)
+POT1DAT h 014 R Paula Pot counter data right pair (vert,horiz)
+
+ These addresses each read a pair of 8 bit pot counters.
+ (4 counters total). The bit assignment for both
+ addresses is shown below. The counters are stopped by signals
+ from 2 controller connectors (left-right) with 2 pins each.
+
+ BIT# 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
+ RIGHT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0
+ LEFT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0
+
+ +--------------------------+-------+
+ | CONNECTORS | PAULA |
+ +-------+------+-----+-----+-------+
+ | Loc. | Dir. | Sym | pin | pin |
+ +-------+------+-----+-----+-------+
+ | RIGHT | Y | RX | 9 | 33 |
+ | RIGHT | X | RX | 5 | 32 |
+ | LEFT | Y | LY | 9 | 36 |
+ | LEFT | X | LX | 5 | 35 |
+ +-------+------+-----+-----+-------+
+
+ With normal (NTSC or PAL) horiz. line rate, the pots will
+ give a full scale (FF) reading with about 500kohms in one
+ frame time. With proportionally faster horiz line times,
+ the counters will count proportionally faster.
+ This should be noted when doing variable beam displays.
+
+-------------------------------------------------------------------------------
+
+NAME rev ADDR type chip Description
+POTGO 034 W Paula Pot port (4 bit) bi-direction and data, and pot counter start.
+
+-------------------------------------------------------------------------------
+
+NAME rev ADDR type chip Description
+POTINP 016 R Paula Pot pin data read
+
+ This register controls a 4 bit bi-direction I/O port
+ that shares the same 4 pins as the 4 pot counters above.
+
+ +-------+----------+---------------------------------------------+
+ | BIT# | FUNCTION | DESCRIPTION |
+ +-------+----------+---------------------------------------------+
+ | 15 | OUTRY | Output enable for Paula pin 33 |
+ | 14 | DATRY | I/O data Paula pin 33 |
+ | 13 | OUTRX | Output enable for Paula pin 32 |
+ | 12 | DATRX | I/O data Paula pin 32 |
+ | 11 | OUTLY | Out put enable for Paula pin 36 |
+ | 10 | DATLY | I/O data Paula pin 36 |
+ | 09 | OUTLX | Output enable for Paula pin 35 |
+ | 08 | DATLX | I/O data Paula pin 35 |
+ | 07-01 | X | Not used |
+ | 00 | START | Start pots (dump capacitors,start counters) |
+ +-------+----------+---------------------------------------------+
+
+-------------------------------------------------------------------------------
Code Review / kvmfornfv.git / blobdiff