MC68HC912B32CFU8 Freescale Semiconductor, MC68HC912B32CFU8 Datasheet - Page 127

• 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

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
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