MB89950 Ver la hoja de datos (PDF) - Fujitsu

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fabricante

MB89950

8-bit Proprietary Microcontroller

Fujitsu 

MB89950 Series

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:

• OTPROM option bit map

Address Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

3FF0H

Vacancy

Readable

and writable

Vacancy

Readable

and writable

Vacancy

Readable

and writable

Oscillation

stabilization

time

1: 218/fC

0: 214/fC

Reset pin

ouput

1: Yes

0: No

Power-on

reset

1: Yes

0: No

Vacancy Vacancy

Readable Readable

and writable and writable

3FF1H

Vacancy

Readable

and writable

P46

Pull-up

1: Yes

0: No

P45

Pull-up

1: Yes

0: No

P44

Pull-up

1: Yes

0: No

P43

Pull-up

1: Yes

0: No

P42

Pull-up

1: Yes

0: No

P41

Pull-up

1: Yes

0: No

P40

Pull-up

1: Yes

0: No

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

3FF2H Readable Readable Readable Readable Readable Readable Readable Readable

and writable and writable and writable and writable and writable and writable and writable and writable

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

3FF3H Readable Readable Readable Readable Readable Readable Readable Readable

and Writable and writable and writable and writable and writable and writable and writable and writable

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

3FF4H Readable Readable Readable Readable Readable Readable Readable Readable

and writable and writable and writable and writable and writable and writable and writable and writable

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

3FF5H Readable Readable Readable Readable Readable Readable Readable Readable

and writable and writable and writable and writable and writable and writable and writable and writable

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

Vacancy

3FF6H Readable Readable Readable Readable Readable Readable Readable Readable

and writable and writable and writable and writable and writable and writable and writable and writable

Note: Each bit is set to ‘1’ as the initialized value, therefore the pull-up option is not selected.

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