mirror of https://github.com/mgcaret/of816.git
105 lines
2.2 KiB
PHP
105 lines
2.2 KiB
PHP
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; Bank Map from FB posting by Lenore:
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; 00 Bank Mapper (16 blocks of 4k each, configured via MMU)
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; 08-0F Bus Controller Peripherals
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; - 08 0000-003F MMU
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; -- 00: 0-3 Unused, 4-7: Upper RAM bits
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; -- 01: Bank
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; - 09 FDC
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; 10-1F Internal Bus Bridge
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; 20-21 Flash ROM
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; 22-2F Reserved for Flash
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; 30-3F Reserved for Expansion Flash
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; 40-47 Video RAM
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; 48-7F Reserved for VRAM
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; 80-87 RAM 1
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; 88-8F RAM 2
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; 90-FF Reserved for RAM
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cpu_clk = 12000000
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; *****************
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; Memory regions
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; *****************
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Neon_ROM = $200000
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Neon_VRAM = $400000
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Neon_RAM1 = $800000
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Neon_RAM2 = $880000
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; *****************
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; MMU
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; *****************
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NeonMMU = $080000
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; *****************
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; I/O Ports
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;
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; Generally for the status ports, unless otherwise stated
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; b3 = transmit buffer full (output is busy)
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; b0 = receive buffer full (input is ready)
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; *****************
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SERio = $100008
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SERstat = $100009
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; Presumably baud and line setup
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SERctrlA = $10000A ; NeonForth sets this to $8D
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SERctrlB = $10000B ; ditto $06
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SERctrlC = $10000C ; ditto $00
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; MIDI ports
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MIDIio = $100020
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MIDIstat = $100021
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; PS/2 Keyboard Port
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PS2Kio = $100022
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PS2Kstat = $100023
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; PS/2 Mouse Port
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PS2Mio = $100024
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PS2Mstat = $100025
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; *****************
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; RTC
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; *****************
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RTCus = $100100 ; 2 bytes
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RTCms = $100102 ; 2 bytes
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RTCsec = $100104 ; 1 byte
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RTCmin = $100105 ; 1 byte
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RTChour = $100106 ; 1 byte
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RTCday = $100108 ; 2 bytes
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; *****************
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; I2C
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; *****************
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I2C2io = $100014
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I2C2ctrl = $100015 ; read: b7 = busy; write: $01 = start, $02 = stop, $04 = receive, $08 = send, $44 = receive/ack
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; *****************
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; SPI
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; *****************
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SPI2io = $10001C
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SPI2ctrl = $10001D ; read: b3 = tx busy, b2 = rx full; write: $01 = start, $00 = stop; init = $00
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SPI2ctrl2 = $10001E ; init = $00
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SPI2ctrl3 = $10001F ; init = $05
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; *****************
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; VDC
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; *****************
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VDCbase = $100120 ; base address, there are $20 registers
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; *****************
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; FDC
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; *****************
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FDCio = $090004
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FDCstat = $090005 ; b7=0 = tx busy
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