MB89628R Datasheet, PDF(13/44 Page) Fujitsu Component Limited.

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MB89628R Datasheet, PDF (13/44 Pages) Fujitsu Component Limited. – 8-bit Proprietary Microcontroller

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MB89628R/629R/P629

7. Setting OTPROM Options

The programming procedure is the same as that for the PROM. Options can be set by programming values at

the addresses shown on the memory map. The relationship between bits and options is shown on the following

bit map:

â¢ OTPROM option bit map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Vacancy

8000H

(0000H) Readable and

writable

Vacancy

Readable and

writable

Vacancy

Readable and

writable

Oscillation

stabilization time

1: Crystal

0: Ceramic

Reset pin

output

1: Yes

2: No

Power-on

reset

1: Yes

0: No

Vacancy

Readable and Readable and

writable

P07

8001H Pull-up

(0001H) 1: No

0: Yes

P06

Pull-up

1: No

0: Yes

P05

Pull-up

1: No

0: Yes

P04

Pull-up

1: No

0: Yes

P03

Pull-up

1: No

0: Yes

P02

Pull-up

1: No

0: Yes

P01

Pull-up

1: No

0: Yes

P00

Pull-up

1: No

0: Yes

P17

8002H Pull-up

(0002H) 1: No

0: Yes

P16

Pull-up

1: No

0: Yes

P15

Pull-up

1: No

0: Yes

P14

Pull-up

1: No

0: Yes

P13

Pull-up

1: No

0: Yes

P12

Pull-up

1: No

0: Yes

P11

Pull-up

1: No

0: Yes

P10

Pull-up

1: No

0: Yes

P37

8003H Pull-up

(0003H) 1: No

0: Yes

P36

Pull-up

1: No

0: Yes

P35

Pull-up

1: No

0: Yes

P34

Pull-up

1: No

0: Yes

P33

Pull-up

1: No

0: Yes

P32

Pull-up

1: No

0: Yes

P31

Pull-up

1: No

0: Yes

P30

Pull-up

1: No

0: Yes

P57

8004H Pull-up

(0004H) 1: No

0: Yes

P56

Pull-up

1: No

0: Yes

P55

Pull-up

1: No

0: Yes

P54

Pull-up

1: No

0: Yes

P53

Pull-up

1: No

0: Yes

P52

Pull-up

1: No

0: Yes

P51

Pull-up

1: No

0: Yes

P50

Pull-up

1: No

0: Yes

Vacancy

8005H

(0005H) Readable and

writable

Vacancy

Readable and

writable

Vacancy

Readable and

writable

P64

Pull-up

1: No

0: Yes

P63

Pull-up

1: No

0: Yes

P62

Pull-up

1: No

0: Yes

P61

Pull-up

1: No

0: Yes

P60

Pull-up

1: No

0: Yes

Vacancy

8006H

(0006H) Readable and

writable

Vacancy

Readable and

writable

Vacancy

Readable and

writable

Vacancy

Readable and

writable

Vacancy

Readable and

writable

Vacancy

Readable and

writable

Vacancy

Readable and

writable

Reserved bit

Readable and

writable

Notes: â¢ Set each bit to 1 to erase.

â¢ Do not write 0 to the vacant bit.

The read value of the vacant bit is 1, unless 0 is written to it.

â¢ Always write 0 to the reserved bit.

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