W79E225A_08 Datasheet, PDF (63/203 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E225A/226A/227A Data Sheet
BIT NAME
7-6 PDTC1
5-0 PDTC1
FUNCTION
Dead-time clock frequency (FDT) prescaler select bits.
PDTC1.7 PDTC1.6 FDT
0
0
FOSC/2
0
1
FOSC/4
1
0
FOSC/8
1
1
FOSC/16
Dead time counter. Unsigned 6 bit dead time value bits for Dead Time Unit.
Dead-time = FDT * (PDTC1 [5:0]+1)
PWM DEAD-TIME CONTROL REGISTER 0
Bit:
7
6
5
4
3
2
1
0
PDTC0.7 PDTC0.6 PDTC0.5 PDTC0.4 PDTC0.3 PDTC0.2 PDTC0.1 PDTC0.0
Mnemonic: PDTC0
Address: E6h
BIT NAME
FUNCTION
7-4 PDTC0
Control complementary PWM to delay a dead-time at every rising edge or falling
edge. Reset value = 0.
1 = Dead-time is inserted at falling edge.
0 = Dead-time is inserted at rising edge.
PDTC0.4 - controls the pair of (PWM0, PWM1).
PDTC0.5 - controls the pair of (PWM2, PWM3).
PDTC0.6 - controls the pair of (PWM4, PWM5).
PDTC0.7 - controls the pair of (PWM6, PWM7).
3-0 PDTC0
Enable dead-time insertion; Dead-time insertion is only active when the pair of
complementary PWM is enabled. Reset value=0. If dead-time insertion is
inactive, the outputs of pin pair are complementary without any delay.
1 = Programmable dead-time is inserted into the pair signals of comparator output
to delay the pair signals change from low to high.
0 = Disable dead-time insertion.
PDTC0.0 - enables the dead-time insertion on the pin pair (PWM0, PWM1).
PDTC0.1 - enables the dead-time insertion on the pin pair (PWM2, PWM3).
PDTC0.2 - enables the dead-time insertion on the pin pair (PWM4, PWM5).
PDTC0.3 - enables the dead-time insertion on the pin pair (PWM6, PWM7).
PWM CONTROL REGISTER 4
Bit:
7
6
5
4
3
PWMEOM PWMOOM PWM6OM PWM7OM
-
Mnemonic: PWMCON4
2
1
-
-
Address: E7h
0
BKF
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Publication Release Date: April 15, 2008
Revision A4.0