XC68HC12A0CPV8 Freescale Semiconductor, XC68HC12A0CPV8 Datasheet - Page 240
XC68HC12A0CPV8
Manufacturer Part Number
XC68HC12A0CPV8
Description
IC, 16BIT MCU, 68HC12, 8MHZ, TQFP-112
Manufacturer
Freescale Semiconductor
Datasheet
1.MC912D60ACFUE8.pdf
(460 pages)
Specifications of XC68HC12A0CPV8
Controller Family/series
68HC12
No. Of I/o's
68
Eeprom Memory Size
1KB
Ram Memory Size
2KB
Cpu Speed
8MHz
No. Of Timers
1
Core Size
16 Bit
Program Memory Size
60KB
Peripherals
ADC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Enhanced Capture Timer
Technical Data
240
RDPT — Timer Port Drive Reduction
TCRE — Timer Counter Reset Enable
PR2, PR1, PR0 — Timer Prescaler Select
This bit reduces the effective output driver size which can reduce
power supply current and generated noise depending upon pin
loading.
This bit allows the timer counter to be reset by a successful output
compare 7 event. This mode of operation is similar to an up-counting
modulus counter.
If TC7 = $0000 and TCRE = 1, TCNT will stay at $0000 continuously.
If TC7 = $FFFF and TCRE = 1, TOF will never be set when TCNT is
reset from $FFFF to $0000.
These three bits specify the number of ÷2 stages that are to be
inserted between the module clock and the main timer counter.
The newly selected prescale factor will not take effect until the next
synchronized edge where all prescale counter stages equal zero.
0 = Normal output drive capability
1 = Enable output drive reduction function
0 = Counter reset inhibited and counter free runs
1 = Counter reset by a successful output compare 7
Enhanced Capture Timer
PR2
0
0
0
0
1
1
1
1
Table 14-3. Prescaler Selection
PR1
0
0
1
1
0
0
1
1
PR0
0
1
0
1
0
1
0
1
MC68HC912D60A — Rev. 3.1
Prescale
Factor
128
16
32
64
1
2
4
8
Freescale Semiconductor
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