Z8F042ASJ020EG2156 Datasheet, PDF (107/280 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F082A Series
Product Specification
91
Timer 0–1 PWM High and Low Byte Registers
The Timer 0–1 PWM High and Low Byte (TxPWMH and TxPWML) registers, shown in
Tables 56 and 57, control Pulse-Width Modulator (PWM) operations. These registers also
store the Capture values for the Capture and Capture/Compare modes.
Table 56. Timer 0–1 PWM High Byte Register (TxPWMH)
Bit
7
6
5
4
3
2
1
0
Field
PWMH
RESET
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Address
F04H, F0CH
Table 57. Timer 0–1 PWM Low Byte Register (TxPWML)
Bit
7
6
5
4
3
2
1
0
Field
PWML
RESET
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Address
F05H, F0DH
Bit
[7:0]
PWMH,
PWML
Description
Pulse-Width Modulator High and Low Bytes
These two bytes, {PWMH[7:0], PWML[7:0]}, form a 16-bit value that is compared to the current
16-bit timer count. When a match occurs, the PWM output changes state. The PWM output
value is set by the TPOL bit in the Timer Control Register (TxCTL1) Register.
The TxPWMH and TxPWML registers also store the 16-bit captured timer value when
operating in Capture or Capture/Compare modes.
PS022828-0413
PRELIMINARY
Timer Control Register Definitions