hw-ds.asm

; This file is part of Programator.
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; Copyright (c) 2024 Aleksander Mazur

;; Podłączenie AT89CX051 do DS89C4X0
AT89C_VPP		equ	P0.7	; podanie 0 wystawia 12 V na RST/VPP; jedynka podaje 5 V na RST/VPP
AT89C_XTAL1		equ	P0.1
AT89C_P1		equ	P2		; port P2 dallasa to P1 atmela
AT89C_RDY_BSY	equ	P1.2	; P3.1 atmela
AT89C_PROG		equ	P0.2	; P3.2 atmela
AT89C_ENABLE	equ	P0.4	; P3.4 atmela

P0AT_OP_READ_FLASH	equ	11100101b	; RST/VPP=5V, operacja=read code, P3.2=H, XTAL1=L
P0AT_OP_READ_SIGN	equ	10000101b	; RST/VPP=5V, operacja=read signature, P3.2=H, XTAL1=L
P0AT_OP_ERASE_ALL	equ	10001101b	; RST/VPP=5V, operacja=chip erase, P3.2=H, XTAL1=L
P0AT_OP_WRITE_FLASH	equ	11110101b	; RST/VPP=5V, operacja=write code, P3.2=H, XTAL1=L