MC68HC711E20CFN3 Freescale Semiconductor, MC68HC711E20CFN3 Datasheet - Page 207
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MC68HC711E20CFN3
Manufacturer Part Number
MC68HC711E20CFN3
Description
IC MCU 3MHZ 20K OTP 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Specifications of MC68HC711E20CFN3
Core Processor
HC11
Core Size
8-Bit
Speed
3MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Size
20KB (20K x 8)
Program Memory Type
OTP
Eeprom Size
512 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
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC711E20CFN3
Manufacturer:
FREESCALE
Quantity:
4 463
Company:
Part Number:
MC68HC711E20CFN3
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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9.8.3 Pulse Accumulator Status and Interrupt Bits
M68HC11E Family — Rev. 3.2
MOTOROLA
Address:
Address:
The pulse accumulator control bits, PAOVI and PAII, PAOVF and PAIF,
are located within timer registers TMSK2 and TFLG2.
PAOVI and PAOVF — Pulse Accumulator Interrupt Enable
Reset:
Reset:
Read:
Read:
Write:
Write:
The PAOVF status bit is set each time the pulse accumulator count
rolls over from $FF to $00. To clear this status bit, write a 1 in the
corresponding data bit position (bit 5) of the TFLG2 register. The
PAOVI control bit allows configuring the pulse accumulator overflow
for polled or interrupt-driven operation and does not affect the state of
PAOVF. When PAOVI is 0, pulse accumulator overflow interrupts are
inhibited, and the system operates in a polled mode, which requires
that PAOVF be polled by user software to determine when an
overflow has occurred. When the PAOVI control bit is set, a hardware
Figure 9-27. Timer Interrupt Mask 2 Register (TMSK2)
Figure 9-28. Timer Interrupt Flag 2 Register (TFLG2)
$1024
$1025
Bit 7
Bit 7
TOF
TOI
0
0
= Unimplemented
= Unimplemented
RTIF
RTII
Timing System
6
0
6
0
PAOVF
PAOVI
and Overflow Flag
5
0
5
0
PAIF
PAII
4
0
4
0
3
0
3
0
2
0
2
0
Pulse Accumulator
PR1
1
0
1
0
Timing System
Technical Data
Bit 0
Bit 0
PR0
0
0
207
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