; Orange programmer module v1.7
; (c) 2010 CnCLab
; CHIP=93C76 (512x16),93C86 (1024x16)

; not all chips support sequential read! 
; Support: AT93C86A

SOCKET=2 ;"MW"

PINO=CLK,0
PINO=DI,1
PINO=CS,2
PINO=ORG,3
PINO=WP,4
PINI=DO,1

CDELAY=3 ; one set delay

[_WAITWR]
LOOP=(0,10000){
DO?1{BREAK}
P=10
}

[!#SETUP]
$WDELAY=10000

[INIT]
WP=1,ORG=1,CS=1,P=10
CLK=0

[READ]
CS=0
CLK=0
CS=1
DI=1,CLK=1,CLK=0    ; start bit
DI=1,CLK=1,CLK=0    ; \ read instruction
DI=0,CLK=1,CLK=0    ; /
LOOP=(9,0){DI=ADR[I],CLK=1,CLK=0}    ; out adr
DI=1,P=1
DO?1{PRINT=A("Chip not respond at %04lX, continue?",ADR),RA?0{EXIT}} 
LOOP=(15,0){CLK=1,CLK=0,DATA[I]=DO}  ; read data word
CS=0


[_READBLOCK]
CS=0
CLK=0
CS=1
DI=1,CLK=1,CLK=0    ; start bit
DI=1,CLK=1,CLK=0    ; \ read instruction
DI=0,CLK=1,CLK=0    ; /
LOOP=(9,0){DI=ADR[I],CLK=1,CLK=0}    ; out adr
DI=1,P=1
DO?1{PRINT=A("Chip not respond at %04lX, continue?",ADR),RA?0{EXIT}} 
LOOP($BLOCKSIZE){
LOOP=(15,0){CLK=1,CLK=0,DATA[I]=DO}  ; read data word
ADR=+1
}
CS=0


[WRITEINIT]
WP=0
CS=0
CLK=0
CS=1
R0=1001100000000b
LOOP=(12,0){DI=R0[I],CLK=1,CLK=0}    ; out EWEN
CS=0


[WRITE]
CS=0
CLK=0
CS=1
DI=1,CLK=1,CLK=0    ; start bit
DI=0,CLK=1,CLK=0    ; \ write instruction
DI=1,CLK=1,CLK=0    ; /
LOOP=(9,0){DI=ADR[I],CLK=1,CLK=0}    ; out adr
LOOP=(15,0){DI=DATA[I],CLK=1,CLK=0}  ; write data word
CS=0,DI=1,CS=1      ; check status
P=$WDELAY
_WAITWR
DO?1
CS=0

[WRITEEND]
WP=1