MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 253

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MC912DG128ACPV

Manufacturer Part Number
MC912DG128ACPV
Description
IC MCU 128K FLASH 8MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet

Specifications of MC912DG128ACPV

Core Processor
CPU12
Core Size
16-Bit
Speed
8MHz
Connectivity
CAN, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
69
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x8/10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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TSCR — Timer System Control Register
TCNT — Timer Count Register
MC68HC912DT128A — Rev 4.0
MOTOROLA
RESET:
RESET:
Bit 15
Bit 7
TEN
Bit 7
Bit 7
0
0
TSWAI
14
6
0
6
6
0
When the OC7Mn bit is set, a successful OC7 action will override a
successful OC[6:0] compare action during the same cycle; therefore, the
OCn action taken will depend on the corresponding OC7D bit.
The 16-bit main timer is an up counter.
A full access for the counter register should take place in one clock cycle.
A separate read/write for high byte and low byte will give a different result
than accessing them as a word.
Read anytime.
Write has no meaning or effect in the normal mode; only writable in
special modes (SMODN = 0).
The period of the first count after a write to the TCNT registers may be a
different size because the write is not synchronized with the prescaler
clock.
Read or write anytime.
TEN — Timer Enable
If for any reason the timer is not active, there is no ÷64 clock for the
pulse accumulator since the E÷64 is generated by the timer prescaler.
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = Disables the main timer, including the counter. Can be used for
1 = Allows the timer to function normally.
TSBCK
13
5
5
0
5
0
reducing power consumption.
Go to: www.freescale.com
Enhanced Capture Timer
TFFCA
12
4
4
0
4
0
11
3
3
0
3
0
10
2
2
0
2
0
1
9
1
0
1
0
Timer Register Descriptions
Enhanced Capture Timer
Bit 0
Bit 8
Bit 0
Bit 0
0
0
Technical Data
$0084–$0085
$0086
253

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