64c20.hpl

schematic interface orange for eeprom programming

; Orange programmer module v3.1
; (c) 2001 Alex Plusov
; CHIP=64C20,128x16
; AKM(ASAHI KASEI),CAT(?)

; AK6420AF: 8pin SOP  Socket "MW"
; AK6420AM: 8pin SSOP Socket "MWR"

; AKM tested!


SOCKET=2 ;"MW"

PINO=SK,0
PINO=DI,1
PINO=CS,2
PINO=RST,3
PINO=RDY,4
PINI=DO,1

CDELAY=5 ; one set delay

[INIT]
RDY=1,RST=1,CS=1,SK=1,RST=0

[READ]
CS=0
R0=10101000B ; Read instruction
LOOP=(7,0){DI=R0[I],SK=0,SK=1}     ; out instr

LOOP=(6,0){DI=ADR[I],SK=0,SK=1}    ; out adr
DI=0,SK=0,SK=1                     ; empty bit
DI=1
LOOP=DATA(15,0){SK=0,I=DO,SK=1}  ; read data word
CS=1


[WRITEINIT]
CS=0
R0=10100011B ; WREN instruction
LOOP=(7,0){DI=R0[I],SK=0,SK=1}     ; out instr
LOOP=(7,0){DI=1,SK=0,SK=1}         ; out adr XXX
CS=1


[WRITE]
CS=0
R0=10100100B ; WRITE instruction
LOOP=(7,0){DI=R0[I],SK=0,SK=1}     ; out instr

LOOP=(6,0){DI=ADR[I],SK=0,SK=1}    ; out adr
DI=0,SK=0,SK=1                     ; empty bit
LOOP=DATA(15,0){DI=I,SK=0,SK=1}    ; send data word
CS=1

P=10000