MC68HC11E1CFN2 Freescale Semiconductor, MC68HC11E1CFN2 Datasheet - Page 162
MC68HC11E1CFN2
Manufacturer Part Number
MC68HC11E1CFN2
Description
IC MCU 512 EEPROM 2MHZ 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheet
1.MC68HC11E1CFN3.pdf
(268 pages)
Specifications of MC68HC11E1CFN2
Core Processor
HC11
Core Size
8-Bit
Speed
2MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Type
ROMless
Eeprom Size
512 x 8
Ram Size
512 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
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Program Memory Size
-
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Timing System
9.7.2 Pulse Accumulator Count Register
9.7.3 Pulse Accumulator Status and Interrupt Bits
Data Sheet
162
DDRA3 — Data Direction for Port A Bit 3
I4/O5 — Input Capture 4/Output Compare 5 Bit
RTR[1:0] — RTI Interrupt Rate Select Bits
This 8-bit read/write register contains the count of external input events at the PAI
input or the accumulated count. The PACNT is readable even if PAI is not active in
gated time accumulation mode. The counter is not affected by reset and can be
read or written at any time. Counting is synchronized to the internal PH2 clock so
that incrementing and reading occur during opposite half cycles.
The pulse accumulator control bits, PAOVI and PAII, PAOVF and PAIF, are located
within timer registers TMSK2 and TFLG2.
Refer to
Refer to
Address:
Address:
Address:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
0 = Output compare 5 function enable (no IC4)
1 = Input capture 4 function enable (no OC5)
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 9-26. Pulse Accumulator Count Register (PACNT)
Section 6. Parallel Input/Output (I/O)
9.5 Real-Time Interrupt
$1027
$1024
$1025
Bit 7
Figure 9-27. Timer Interrupt Mask 2 Register (TMSK2)
Bit 7
Bit 7
Bit 7
TOF
TOI
Figure 9-28. Timer Interrupt Flag 2 Register (TFLG2)
0
0
Go to: www.freescale.com
= Unimplemented
= Unimplemented
Bit 6
RTIF
RTII
6
6
0
6
0
Timing System
PAOVF
PAOVI
Bit 5
5
5
0
5
0
Indeterminate after reset
(RTI).
Bit 4
PAIF
PAII
4
4
0
4
0
Bit 3
3
3
0
3
0
Ports.
Bit 2
M68HC11E Family — Rev. 5
2
2
0
2
0
Bit 1
PR1
1
1
0
1
0
MOTOROLA
Bit 0
Bit 0
Bit 0
Bit 0
PR0
0
0
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