HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 326

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Bits 5 and 4—Combination Mode 1 and 0 (CMD1, CMD0): These bits select whether channels
3 and 4 operate in normal mode, complementary PWM mode, or reset-synchronized PWM mode.
Bit 5
CMD1
0
1
Before selecting reset-synchronized PWM mode or complementary PWM mode, halt the timer
counter or counters that will be used in these modes.
When these bits select complementary PWM mode or reset-synchronized PWM mode, they take
precedence over the setting of the PWM mode bits (PWM4 and PWM3) in TMDR. Settings of
timer sync bits SYNC4 and SYNC3 in TSNC are valid in complementary PWM mode and reset-
synchronized PWM mode, however. When complementary PWM mode is selected, channels 3
and 4 must not be synchronized (do not set bits SYNC3 and SYNC4 both to 1 in TSNC).
Bit 3—Buffer Mode B4 (BFB4): Selects whether GRB4 operates normally in channel 4, or
whether GRB4 is buffered by BRB4.
Bit 3
BFB4
0
1
Bit 2—Buffer Mode A4 (BFA4): Selects whether GRA4 operates normally in channel 4, or
whether GRA4 is buffered by BRA4.
Bit 2
BFA4
0
1
Bit 4
CMD0
0
1
0
1
Description
GRB4 operates normally
GRB4 is buffered by BRB4
Description
GRA4 operates normally
GRA4 is buffered by BRA4
Description
Channels 3 and 4 operate normally
Channels 3 and 4 operate together in complementary PWM mode
Channels 3 and 4 operate together in reset-synchronized PWM mode
314
(Initial value)
(Initial value)
(Initial value)