MCHC908JK3CPE Freescale Semiconductor, MCHC908JK3CPE Datasheet - Page 131
MCHC908JK3CPE
Manufacturer Part Number
MCHC908JK3CPE
Description
IC MCU 4K FLASH 20-PDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908JK1CDW.pdf
(212 pages)
Specifications of MCHC908JK3CPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
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10.10.2 TIM Counter Registers (TCNTH:TCNTL)
MC68H(R)C908JL3
Freescale Semiconductor
NOTE:
—
Rev. 1.1
The two read-only TIM counter registers contain the high and low bytes
of the value in the TIM counter. Reading the high byte (TCNTH) latches
the contents of the low byte (TCNTL) into a buffer. Subsequent reads of
TCNTH do not affect the latched TCNTL value until TCNTL is read.
Reset clears the TIM counter registers. Setting the TIM reset bit (TRST)
also clears the TIM counter registers.
If you read TCNTH during a break interrupt, be sure to unlatch TCNTL
by reading TCNTL before exiting the break interrupt. Otherwise, TCNTL
retains the value latched during the break.
PS2
0
0
0
0
1
1
1
1
PS1
0
0
1
1
0
0
1
1
Timer Interface Module (TIM)
PS0
0
1
0
1
0
1
0
1
Table 10-2. Prescaler Selection
Internal Bus Clock ÷ 1
Internal Bus Clock ÷ 2
Internal Bus Clock ÷ 4
Internal Bus Clock ÷ 8
Internal Bus Clock ÷ 16
Internal Bus Clock ÷ 32
Internal Bus Clock ÷ 64
TIM Clock Source
Not available
Timer Interface Module (TIM)
Technical Data
129
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