Oki ML421 Series, Руководство по обслуживанию, Страница: 14 / 133

42113901 Rev.2
14 /
Oki Data CONFIDENTIAL
MPU EEPROM
EEDIN-P
EECS-P
EEDOUT-P
EECLK-P
P24
P27
P25
P26
D1
CS
DO
SK
Ready Bus
twp
D0 D15 A0 A5
1 1
0
Start
code
Operation
code
Address Data
t
CS
PRE = O
PE
EECS-P
EECLK-P
EEDIN-P
EEDOUT-P
Address
Start
code
Operation
code
EEDOUT-P
EEDIN-P
EECLK-P
EECS-P
D15 D0 D15 D0 D15
0
A0 A5
0
1 1
t
CS
PRE = O
PE = X
(5) EEPROM
The EEPROM is a CMOS serial I/O type memory which is capable of electrically erasing
and writing 1,024 bits.
The EEPROM contains menu data.
The following shows the memory access operation.
Read cycle timing (READ)
Write cycle timing (WRITE)