MC68HC912B32CFU8 Freescale Semiconductor, MC68HC912B32CFU8 Datasheet - Page 122

• 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

Clock Generation Module (CGM)
122
PORT T7
TEN
PORT T7
MCLK
P CLOCK
÷
÷
÷
÷
÷
÷
÷
2
2
2
2
2
2
2
PAEN
PAEN
÷
÷
÷
÷
÷
÷
2
2
2
2
2
2
0:1:0
1:1:0
BITS: PR2, PR1, AND PR0
0:0:1
0:1:1
1:0:0
1:0:1
1:1:1
REGISTER: TMSK2
0:0:0
TEN
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
REGISTER: TMSK2
BITS: PR2, PR1, AND PR0
LOGIC
GATE
LOGIC
GATE
Figure 10-12. Clock Chain for ECT
Figure 10-11. Clock Chain for TIM
M68HC12B Family Data Sheet, Rev. 9.1
PAMOD
PAMOD
PACLK
MCEN
LOW BYTE
PACLK
PULSE
ACC
÷
÷
÷
4
2
2
PULSE ACC
LOW BYTE
HIGH BYTE
BITS: MCPR1 AND MCPR0
REGISTER: MCCTL
0:0
0:1
1:0
1:1
PULSE
ACC
PACLK/256
PULSE ACC
HIGH BYTE
PACLK/65536
(PAOV)
PACLK/256
PACLK/65536
(PAOV)
MODULUS
REGISTER: PACTL
BITS: PAEN, CLK1, AND CLK0
DOWN
REGISTER: PACTL
BITS: PAEN, CLK1, AND CLK0
0:x:x
1:0:0
1:0:1
1:1:0
1:1:1
1:0:1
1:1:1
0:x:x
1:0:0
1:1:0
Freescale Semiconductor
COUNTER
TO TIMER
MAIN
COUNTER
TO TIM