7906 datasheet(448/531 Pages) RENESAS

448 / 531 page

7906 Group User’s Manual Rev.2.0

20-43

APPENDIX

Appendix 2. Control registers

Timer A01 register (Addresses D116, D016)

Timer A11 register (Addresses D316, D216)

Timer A21 register (Addresses D516, D416)

(b15)

(b8)

Reference

10-13

Undefined

15 to 0

Bit

Function

At reset

R/W

Any value in the range from 000016 to FFFF16 can be set.

Assuming that the set value = n, the “H” level width of the one-shot pulse is expressed

as follows: n/fi.

fi: Frequency of a count source

Notes 1: Use the MOVM or STA (STAD) instruction for writing to this register. Additionally, make sure writing to this register

must be performed in a unit of 16 bits.

2: This register is valid only in three-phase mode 1 of the three-phase waveform mode.

Bit name

Bit

7 to 5

Comparator function select register 0 (Address DC16)

Function

At reset

R/W

AN0 pin comparator function select bit

AN1 pin comparator function select bit

AN2 pin comparator function select bit

AN3 pin comparator function select bit

AN4 pin comparator function select bit

Fix these bits to “000.”

b7 b6 b5 b4 b3 b2 b1 b0

0 : The comparator function is not selected.

1 : The comparator function is selected.

00 0

Note: Writing to comparator function select register 0 must be performed while the A-D converter halts.

Bit name

Bit

7 to 5

Comparator result register 0 (Address DE16)

Function

At reset

R/W

AN0 pin comparator result bit

AN1 pin comparator result bit

AN2 pin comparator result bit

AN3 pin comparator result bit

AN4 pin comparator result bit

Fix these bits to “000.”

b7 b6 b5 b4 b3 b2 b1 b0

0 : The set value > The input level at pin ANi

1 : The set value < The input level at pin ANi

00 0

Note: Writing to comparator result register 0 must be performed while the A-D converter halts.

Reference

12-9

Reference

12-9

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