sda2506.hpl

schematic interface orange for eeprom programming

; Orange programmer module v1.2
; (c) 1999 Victor Filipyev & Alex Plusov
; CHIP=SDA2506 (128x8) Siemens

SOCKET=3

PINO=C,0
PINO=D,1
PINO=CE,2
PINI=D,1

CDELAY=10 ; one set delay

[READ]
D=1
C=0
CE=1
LOOP=ADR(0,6){D=I,C=1,C=0}    ; out adr
D=0,C=1,C=0                   ; CB=0 - control bit
CE=0
D=1
LOOP=DATA(0,7){C=1,C=0,P=5,I=D,P=5}   ; read data word

[WRITE]
D=1
C=0
CE=1
LOOP=DATA(0,7){D=I,C=1,C=0}
LOOP=ADR(0,6){D=I,C=1,C=0}
D=1,C=1,C=0                   ; CB=1 - control bit

D=1,CE=0
C=1,C=0                   ; start Erase
P=20000
CE=1

D=0,CE=0
C=1,C=0                   ; start Write

P=20000
CE=0