MC68HC11K1CFN4 Freescale Semiconductor, MC68HC11K1CFN4 Datasheet - Page 204

• Manufacturer Part Number: MC68HC11K1CFN4
• Description: IC MCU 640 EEPROM 4MHZ 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11K1CFN4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Type: ROMless
• Eeprom Size: 640 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Program Memory Size: -

Timing System
Technical Data
204
PAI/OC1
MAIN TIMER
PA7/
FROM
FROM
DDA7
OC1
FROM MAIN TIMER
E
64 CLOCK
OUTPUT
BUFFER
Registers involved in pulse accumulator operation include:
EDGE DETECTION
INPUT BUFFER
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Freescale Semiconductor, Inc.
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AND
Data direction register A (DDRA)
Pulse accumulator control register (PACTL)
Timer interrupt mask 2 register (TMSK2)
Timer interrupt flag 2 (TFLG2)
Pulse accumulator count register (PACNT)
Figure 9-21. Pulse Accumulator
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INTERRUPT ENABLES
Timing System
TMSK2
CONTROL
PACTL
MUX
2:1
PAEN
CLOCK
PAEN
PAI EDGE
DATA BUS
INTERNAL
STATUS FLAGS
8-BIT COUNTER
OVERFLOW
ENABLE
PACNT
TFLG2
M68HC11K Family
INTERRUPT
REQUESTS
MOTOROLA
1
2