Oki 3321, 3320 specifications EEDIN-P EECS-P EEDOUT-P EECLK-P Eeprom

(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

EEDIN-P

EECS-P

EEDOUT-P

EECLK-P

EEPROM

D1

CS

DO

PRE = O

PE = X

EECS-P

tCS

EECLK-P

	Start	Operation			Address
		code
	code
EEDIN-P	1	1	0	A5		A0
EEDOUT-P						0

D15 D0 D15 D0 D15

Read cycle timing (READ)

PRE = O

PE

EECS-P

EECLK-P

EEDIN-P

tCS

Start	Operation		Address			Data
	code
code
1	0	1	A5	A0	D15	D0

EEDOUT-P

Bus

Ready

twp

Write cycle timing (WRITE)

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