MC68HC711K4CFU4 Freescale Semiconductor, MC68HC711K4CFU4 Datasheet - Page 70

• Manufacturer Part Number: MC68HC711K4CFU4
• Description: IC MCU 24K 4MHZ EEPROM 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711K4CFU4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 62
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: OTP
• 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: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PEDGE —Pulse Accumulator Edge Control
Bit 3 —Not implemented
I4/O5 —Input Capture 4/Output Compare 5
RTR[1:0] —Real-Time Interrupt (RTI) Rate
10.1 Real-Time Interrupt
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MOTOROLA
Refer to 11 Pulse Accumulator.
Always reads zero
Configure TI4/O5 for input capture or output compare
Refer to 10.1 Real-Time Interrupt.
These rates are a function of the MCU oscillator frequency and the value of the software-accessible
control bits, RTR1 and RTR0. These bits determine the rate at which interrupts are requested by the
RTI system. The RTI system is driven by an E divided by 2
pendent of the timer prescaler. The RTR1 and RTR0 control bits select an additional division factor. RTI
is set to its fastest rate by default out of reset and can be changed at any time.
RTR[1:0]
RTR[1:0]
0 = OC5 enabled
1 = IC4 enabled
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
Table 12 Real-Time Interrupt Rates (Period Length)
Period Length
Rate Selected
Table 13 Real-Time Interrupt Rates (Frequency)
Freescale Semiconductor, Inc.
Selected
E 2
E
E
E
2
2
2
2
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E
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E = 2.0 MHz
E = 2.0 MHz
244.141 Hz
122.070 Hz
16.384 ms
32.768 ms
61.035 Hz
30.518 Hz
4.096 ms
8.192 ms
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rate clock compensated so that it is inde-
Period Length
E = 3.0 MHz
E = 3.0 MHz
Frequency
366.211 Hz
183.105 Hz
10.923 ms
21.845 ms
91.553 Hz
45.776 Hz
2.731 ms
5.461 ms
M68HC11 K Series
MC68HC11KTS/D
E = 4.0 MHz
E = 4.0 MHz
488.281 Hz
244.141 Hz
122.070 Hz
16.383 ms
61.035 Hz
2.048 ms
4.096 ms
8.192 ms