7906 datasheet(442/531 Pages) RENESAS

442 / 531 page

7906 Group User’s Manual Rev.2.0

20-37

APPENDIX

Appendix 2. Control registers

Waveform output mode register (Address A616)

b7 b6 b5 b4 b3 b2 b1 b0

Waveform output select bits

(Note)

Pulse output mode select bit

Pulse width modulation timer

select bit

Waveform output control bit 0

Waveform output control bit 1

Bit name

Bit

Waveform output mode register (Address A616)

Function

At reset

R/W

b7 b6 b5 b4 b3 b2 b1 b0

When pulse mode 0 is selected,

0: RTP10, RTP11: pulse outputs are disabled.

1: RTP10, RTP11: pulse outputs are enabled.

When pulse mode 1 is selected,

fix this bit to “0.”

See Table 9.2.1.

See Table 9.2.2.

0 : Pulse mode 0

1 : Pulse mode 1

When pulse mode 0 is selected,

0 : RTP00 to RTP03: pulse outputs are disabled.

1 : RTP00 to RTP03: pulse outputs are enabled.

When pulse mode 1 is selected,

0 : RTP00 to RTP03 RTP10, RTP11: pulse outputs

are disabled.

1 : RTP00 to RTP03 RTP10, RTP11: pulse outputs

are enabled.

Waveform output mode register (Address A616)

s Three-phase waveform mode

s Pulse output mode

Reference

10-6

Reference

9-4

9-5

Waveform output select bits

(Note 1)

Three-phase output polarity set buffer

(Valid in three-phase mode 1) (Note 2)

Three-phase mode select bit

Dead-time timer trigger select bit

(Note 3)

Waveform output control bit

Bit name

Bit

Function

At reset

R/W

X: It may be either “0” or “1.”

Notes 1: When not using the pulse output mode and three-phase waveform mode, be sure to fix these bits to “0002.”

2: This bit is invalid in three-phase mode 0.

3: When the saw-tooth-wave modulation output is performed, be sure to fix this bit to “0.”

4: Writing to any of bits 0 to 6 must be performed while counting for timers A0 to A3 halts.

1 0 0 : Three-phase waveform mode

0 : “H” output

1 : “L” output

0 : Three-phase mode 0

1 : Three-phase mode 1

0: Both falling and rising edges of one-shot

pulse for timers A0 to A2

1: Only the falling edge of one-shot pulse for

timers A0 to A2

0 : Waveform output disabled

1 : Waveform output enabled

Note: When not using the pulse output port mode and three-phase waveform mode, be sure to fix these bits to “0002.”

Invalid in the three-phase waveform mode.

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