Register Descriptions; Bit Pwm Data Registers 0, 1, 2 And 3 (Pwr0, Pwr1, Pwr2, Pwr3) - Renesas Hitachi H8S/2194 Series Hardware Manual

19.2

Register Descriptions

19.2.1

Bit PWM Data Registers 0, 1, 2 and 3 (PWR0, PWR1, PWR2, PWR3)

(1) PWR0
Bit : 7
PW07
Initial value :
0
W
R/W :
(2) PWR1
Bit :
7
PW17
Initial value :
0
W
R/W :
(3) PWR2
Bit :
7
PW27
Initial value :
0
R/W : W
(4) PWR3
Bit :
7
PW37
Initial value :
0
W
R/W :
8-bit PWM data registers 0, 1, 2 and 3 (PWR0, PWR1, PWR2, PWR3) control the duty cycle at
8-bit PWM pins. The data written in PWR0, PWR1, PWR2 and PWR3 correspond to the high-
level width of one PWM output waveform cycle (256 states).
When data is set in PWR0, PWR1, PWR2 and PWR3, the contents of the data are latched in the
PWM waveform generators, updating the PWM waveform generation data.
PWR0, PWR1, PWR2 and PWR3 are write-only registers. When read, all bits are always read
as 1.
PWR0, PWR1, PWR2 and PWR3 are initialized to H'00 by a reset.
6 5
PW06 PW05 PW04
0 0
W W
6 5
PW16 PW15 PW14
0 0
W W
6 5
PW26 PW25 PW24
0 0
W W
6 5
PW36 PW35 PW34
0 0
W W
4 3 2
PW03 PW02
0 0 0
W W W
4 3 2
PW13 PW12
0 0 0
W W W
4 3 2
PW23 PW22
0 0 0
W W W
4 3 2
PW33 PW32
0 0 0
W W W
Rev. 2.0, 11/00, page 407 of 1037
1 0
PW01 PW00
0 0
W W
1 0
PW11 PW10
0 0
W W
1 0
PW21 PW20
0 0
W W
1 0
PW31 PW30
0 0
W W