MC68HC912B32VFU8 Freescale Semiconductor, MC68HC912B32VFU8 Datasheet - Page 127

• Manufacturer Part Number: MC68HC912B32VFU8
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC912B32VFU8

• Cpu Family: HC12
• Device Core Size: 16b
• Frequency (max): 8MHz
• Interface Type: SCI/SPI
• Program Memory Type: EPROM
• Program Memory Size: 32KB
• Total Internal Ram Size: 1KB
• # I/os (max): 63
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 80
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Freescale Semiconductor
LIMBDM
PSBCK
ECLK
*CLOCK S0 = (CLOCK A)/2, (CLOCK A)/4, (CLOCK A)/6,... (CLOCK A)/512
**CLOCK S1 = (CLOCK B)/2, (CLOCK B)/4, (CLOCK B)/6,... (CLOCK B)/512
BITS:
PCKB2,
PCKB1,
PCKB0
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
PSBCK IS BIT 0 OF PWCTL REGISTER.
INTERNAL SIGNAL LIMBDM IS 1 IF THE MCU IS IN BACKGROUND DEBUG MODE.
REGISTER:
PWPRES
÷
÷
÷
÷
÷
÷
÷
2
2
2
2
2
2
2
0:0:0
0:0:1
0:1:0
1:0:0
1:1:0
0:1:1
1:0:1
1:1:1
Figure 11-3. PWM Clock Sources
M68HC12B Family Data Sheet, Rev. 9.1
BITS:
PCKA2,
PCKA1,
PCKA0
8-BIT SCALE REGISTER
8-BIT DOWN COUNTER
8-BIT SCALE REGISTER
8-BIT DOWN COUNTER
PWSCNT1
PWSCNT0
PWSCAL1
PWSCAL0
CLOCK B
CLOCK A
= 0
= 0
÷
÷
2
2
PCLK3
PCLK2
PCLK0
PCLK1
CLOCK TO PWM
CHANNEL 3
CLOCK TO PWM
CHANNEL 0
CLOCK TO PWM
CHANNEL 1
CLOCK TO PWM
CHANNEL 2
Introduction
127