P8XC591 Datasheet, PDF (123/160 Pages) NXP Semiconductors – Single-chip 8-bit microcontroller with CAN controller

Philips Semiconductors
Single-chip 8-bit microcontroller with CAN controller
Preliminary Specification
P8xC591
18.1 Prescaler Frequency Control Register (PWMP)
Reading PWMP gives the current reload value. The actual count of the prescaler cannot be read.
Table 82 Prescaler Frequency Control Register (address FEH), Reset Value = 00H
7
PWMP.7
6
PWMP.6
5
PWMP.5
4
PWMP.4
3
PWMP.3
2
PWMP.2
1
PWMP.1
0
PWMP.0
Table 83 Description of PWMP bits
BIT
7 to 0
SYMBOL
PWMP.7 to PWMP.0
DESCRIPTION
Prescaler division factor. The Prescaler division factor = (PWMP) + 1.
18.2 Pulse Width Register 0 (PWM0)
Table 84 Pulse width register (address FCH), Reset Value = 00H
7
PWM0.7
6
PWM0.6
5
PWM0.5
4
PWM0.4
3
PWM0.3
2
PWM0.2
1
PWM0.1
0
PWM0.0
Table 85 Description of PWM0 bits
BIT
7 to 0
SYMBOL
PWM0.7 to PWM0.0
DESCRIPTION
Pulse width ratio.
LOW/HIGH ratio of PWM0 signals = _2----5---5--⁽--P-_–---W--₍--P---M-W----0---M-⁾----0----₎
18.3 Pulse Width Register 1 (PWM1)
Table 86 Pulse width register (address FDH)
7
PWM1.7
6
PWM1.6
5
PWM1.5
4
PWM1.4
3
PWM1.3
2
PWM1.2
1
PWM1.1
0
PWM1.0
Table 87 Description of PWM1 bits
BIT
7 to 0
SYMBOL
PWM1.7 to PWM1.0
DESCRIPTION
Pulse width ratio.
LOW/HIGH ratio of PWM1 signals = _2----5---5--⁽--P-_–---W--₍--P---M-W----1---M-⁾----1----₎
2000 Jul 26
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