Oki MICROLINE 320 Turbo Maintenance Manual page 13

(4) 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.
MPU
P24
P27
P25
P26
PRE = O
PE = X
EECS-P
EECLK-P
EEDIN-P
EEDOUT-P
PRE = O
PE
EECS-P
EECLK-P
EEDIN-P
EEDOUT-P
42089201TH Rev.4
EEDIN-P
D1
EECS-P
CS
EEDOUT-P
DO
EECLK-P
SK
Operation
Start
code Address
code
0
1 1
A5 A0
Read cycle timing (READ)
Operation
Start Address
code
code
0 A5 A0
1 1
Write cycle timing (WRITE)
EEPROM
0
D15 D0 D15 D0
t
CS
Data
D15 D0
Bus
twp
Oki Data CONFIDENTIAL
t
CS
D15
Ready
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