mirror of
https://github.com/mgcaret/of816.git
synced 2024-11-04 21:07:09 +00:00
105 lines
2.2 KiB
PHP
105 lines
2.2 KiB
PHP
|
|
; Bank Map from FB posting by Lenore:
|
|
; 00 Bank Mapper (16 blocks of 4k each, configured via MMU)
|
|
; 08-0F Bus Controller Peripherals
|
|
; - 08 0000-003F MMU
|
|
; -- 00: 0-3 Unused, 4-7: Upper RAM bits
|
|
; -- 01: Bank
|
|
; - 09 FDC
|
|
; 10-1F Internal Bus Bridge
|
|
; 20-27 Flash ROM
|
|
; 28-3F Reserved for Flash
|
|
; 30-3F Reserved for Expansion Flash
|
|
; 40-47 Video RAM
|
|
; 48-7F Reserved for VRAM
|
|
; 80-87 RAM 1
|
|
; 88-8F RAM 2
|
|
; 90-FF Reserved for RAM
|
|
|
|
cpu_clk = 14000000
|
|
|
|
; *****************
|
|
; Memory regions
|
|
; *****************
|
|
Neon_ROM = $200000
|
|
Neon_VRAM = $400000
|
|
Neon_RAM1 = $800000
|
|
Neon_RAM2 = $880000
|
|
|
|
; *****************
|
|
; MMU
|
|
; *****************
|
|
|
|
NeonMMU = $080000
|
|
|
|
; *****************
|
|
; I/O Ports
|
|
;
|
|
; Generally for the status ports, unless otherwise stated
|
|
; b3 = transmit buffer full (output is busy)
|
|
; b0 = receive buffer full (input is ready)
|
|
; *****************
|
|
|
|
SERio = $100008
|
|
SERstat = $100009
|
|
; Presumably baud and line setup
|
|
SERctrlA = $10000A ; NeonForth sets this to $8D
|
|
SERctrlB = $10000B ; ditto $06
|
|
SERctrlC = $10000C ; ditto $00
|
|
|
|
; MIDI ports
|
|
MIDIio = $100020
|
|
MIDIstat = $100021
|
|
|
|
; PS/2 Keyboard Port
|
|
PS2Kio = $100022
|
|
PS2Kstat = $100023
|
|
|
|
; PS/2 Mouse Port
|
|
PS2Mio = $100024
|
|
PS2Mstat = $100025
|
|
|
|
; *****************
|
|
; RTC
|
|
; *****************
|
|
|
|
RTCus = $100100 ; 2 bytes
|
|
RTCms = $100102 ; 2 bytes
|
|
RTCsec = $100104 ; 1 byte
|
|
RTCmin = $100105 ; 1 byte
|
|
RTChour = $100106 ; 1 byte
|
|
RTCday = $100108 ; 2 bytes
|
|
|
|
; *****************
|
|
; I2C
|
|
; *****************
|
|
|
|
I2C2io = $100014
|
|
I2C2ctrl = $100015 ; read: b3 = busy; write: $01 = start, $02 = stop, $04 = receive, $08 = send, $44 = receive/ack
|
|
|
|
; *****************
|
|
; SPI
|
|
; *****************
|
|
|
|
SPI2io = $10001C
|
|
SPI2ctrl = $10001D ; read: b3 = tx busy, b2 = rx full; write: $01 = start, $00 = stop; init = $00
|
|
SPI2ctrl2 = $10001E ; init = $00
|
|
SPI2ctrl3 = $10001F ; init = $05
|
|
|
|
|
|
; *****************
|
|
; VDC
|
|
; *****************
|
|
|
|
VDCio = $100120 ; read: 1 byte, write: 1 or 2 bytes
|
|
|
|
; *****************
|
|
; FDC
|
|
; *****************
|
|
|
|
FDCio = $090004
|
|
FDCstat = $090005 ; b7=0 = tx busy
|
|
|
|
|
|
|