7906 datasheet(215/531 Pages) RENESAS

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THREE-PHASE WAVEFORM MODE

7906 Group User’s Manual Rev.2.0

10-10

10.2 Block description

10.2.4 Three-phase output data register 1

Figure 10.2.7 shows the structure of the three-phase output data register 1 (the three-phase waveform

mode).

Fig. 10.2.7 Structure of three-phase output data register 1 (three-phase waveform mode)

Three-phase output data register 1 (Address A916)

b7 b6 b5 b4 b3 b2 b1 b0

X X

0 : “H” output

1 : “L” output

0 : An interrupt request occurs at each even-number-

ed underflow of timer A3

1 : An interrupt request occurs at each odd-number-

ed underflow of timer A3

W-phase fixed output’s polarity

set bit

(Note 1)

V-phase fixed output’s polarity

set bit

(Note 2)

U-phase fixed output’s polarity

set bit

(Note 3)

V-phase output polarity set buffer

(in three-phase mode 0)

Interrupt request interval set bit

(in three-phase mode 1)

U-phase output polarity set buffer

(in three-phase mode 0)

Interrupt validity output select bit

(in three-phase mode 1)

0 : “H” output

1 : “L” output

0 : Every second time

1 : Every forth time

Bit name

Bit

7, 6

Function

At reset

R/W

0 : “H” output fixed

1 : “L” output fixed

0 : “H” output fixed

1 : “L” output fixed

0 : “H” output fixed

1 : “L” output fixed

X: It may be either “0” or “1.”

Notes 1: Valid when the W-phase output fix bit (bit 0 at address A816) = “1.” Be sure not to change the value during output of a

fixed value.

2: Valid when the V-phase output fix bit (bit 1 at address A816) = “1.” Be sure not to change the value during output of a

fixed value.

3: Valid when the U-phase output fix bit (bit 2 at address A816) = “1.” Be sure not to change the value during output of a

fixed value.

Invalid in the three-phase waveform mode.

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