7906 datasheet(412/531 Pages) RENESAS

412 / 531 page

7906 Group User’s Manual Rev.2.0

20-7

APPENDIX

Appendix 1. Memory assigment in SFR area

: It is possible to read the bit state at reading. The written value becomes valid.

: It is possible to read the bit state at reading. The written value becomes invalid.

: The written value becomes valid. It is impossible to read the bit state.

: Nothing is assigned. It is impossible to read the bit state. The written value becomes invalid.

Access characteristics

: “0” immediately after reset.

: “1” immediately after reset.

: Undefined immediately after

reset.

: Always “0” at reading.

: Always “1” at reading.

: Always undefined at reading.

: “0” immediately after reset. Fix this bit to “0.”

State immediately after reset

A0 16

A1 16

A2 16

A3 16

A4 16

A5 16

A6 16

A7 16

A8 16

A9 16

B0 16

B1 16

B2 16

B3 16

B4 16

B5 16

B6 16

B7 16

B8 16

B9 16

BA 16

BB 16

BC16

BD16

BE 16

BF 16

AB 16

AC16

AD16

AE 16

AF 16

AA 16

Three-phase output data register 1

Serial I/O pin control register

Clock control register 0

Notes 17 : Do not write to this register.

18 : After reset, these bits are allowed to be changed only once.

Address

Access characteristics

State immediately after reset

Port P2 pin function control register

Position-data-retain function control register

Three-phase output data register 0

Dead-time timer

Waveform output mode register

(Note 17)

RW RO RO

0016

(Note 17)

RW RW RW (Note 18) RW RW

(Note 17)

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