MC68HC912B32CFU8 Freescale Semiconductor, MC68HC912B32CFU8 Datasheet - Page 136

• Manufacturer Part Number: MC68HC912B32CFU8
• Description: IC MCU 32K FLASH 8MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC68HC912B32CFU8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 768 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Pulse-Width Modulator (PWM)
11.2.12 PWM Control Register
Read: Anytime
Write: Anytime
PSWAI — PWM Halts While in Wait Mode Bit
CENTR — Center-Aligned Output Mode Bit
RDPP — Reduced Drive of Port P Bit
PUPP — Pullup Port P Enable Bit
PSBCK — PWM Stops While in Background Mode Bit
136
To avoid irregularities in the PWM output mode, write the CENTR bit only when PWM channels are
disabled.
0 = Continue PWM main clock generator while in wait mode.
1 = Halt PWM main clock generator when the part is in wait mode.
0 = PWM channels operate in left-aligned output mode.
1 = PWM channels operate in center-aligned output mode.
0 = Full drive for all port P output pins
1 = Reduced drive for all port P output pins
0 = Disable port P pullups
1 = Enable pullups for all port P input pins.
0 = Allows PWM to continue while in background mode
1 = Disable PWM input clock while in background mode.
Address: $0054
Reset:
Read:
Write:
Bit 7
0
0
Figure 11-24. PWM Control Register (PWCTL)
= Unimplemented
6
0
0
M68HC12B Family Data Sheet, Rev. 9.1
5
0
0
PSWAI
4
0
CENTR
3
0
RDPP
2
0
PUPP
1
0
Freescale Semiconductor
PSBCK
Bit 0
0