; 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
; 20-21 Flash ROM
; 22-2F 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   = 12000000

; *****************
; 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: b7 = 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
; *****************

VDCbase   = $100120               ; base address, there are $20 registers

; *****************
; FDC
; *****************

FDCio     = $090004
FDCstat   = $090005               ; b7=0 = tx busy