參數(shù)資料
型號: P87C591VFB
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 27 PF 5% 50V NPO/COG (0805) CHIP CAP TR
中文描述: 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 X 1.75 MM, PLASTIC, QFP-44
文件頁數(shù): 123/161頁
文件大?。?/td> 588K
代理商: P87C591VFB
1999 Aug 19
123
Philips Semiconductors
Objective Specification
Single-chip 8-bit microcontroller with CAN controller
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
Table 83
Description of PWMP bits
18.2
Pulse Width Register 0 (PWM0)
Table 84
Pulse width register (address FCH), Reset Value = 00H
Table 85
Description of PWM0 bits
18.3
Pulse Width Register 1 (PWM1)
Table 86
Pulse width register (address FDH)
Table 87
Description of PWM1 bits
7
6
5
4
3
2
1
0
PWMP.7
PWMP.6
PWMP.5
PWMP.4
PWMP.3
PWMP.2
PWMP.1
PWMP.0
BIT
SYMBOL
DESCRIPTION
7 to 0
PWMP.7 to PWMP.0
Prescaler division factor
. The Prescaler division factor = (PWMP) + 1.
7
6
5
4
3
2
1
0
PWM0.7
PWM0.6
PWM0.5
PWM0.4
PWM0.3
PWM0.2
PWM0.1
PWM0.0
BIT
SYMBOL
DESCRIPTION
7 to 0
PWM0.7 to PWM0.0
Pulse width ratio.
7
6
5
4
3
2
1
0
PWM1.7
PWM1.6
PWM1.5
PWM1.4
PWM1.3
PWM1.2
PWM1.1
PWM1.0
BIT
SYMBOL
DESCRIPTION
7 to 0
PWM1.7 to PWM1.0
Pulse width ratio.
LOW/HIGH ratio of PWM0 signals
PWM0
(
)
255
)
----------PWM0
=
LOW/HIGH ratio of PWM1 signals
PWM1
(
)
255
)
----------PWM1
=
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