MC68HC908LB8CPE Freescale Semiconductor, MC68HC908LB8CPE Datasheet - Page 197
MC68HC908LB8CPE
Manufacturer Part Number
MC68HC908LB8CPE
Description
IC MCU 8K FLASH 8MHZ 20DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908LB8CDWE.pdf
(234 pages)
Specifications of MC68HC908LB8CPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LVR, POR, PWM
Number Of I /o
18
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 7x8b
Oscillator Type
Internal
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908LB8CPE
Manufacturer:
IR
Quantity:
10
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18.8.3 TIM Counter Modulo Registers
The read/write TIM modulo registers contain the modulo value for the TIM counter. When the TIM counter
reaches the modulo value, the overflow flag (TOF) becomes set, and the TIM counter resumes counting
from $0000 at the next timer clock. Writing to the high byte (TMODH) inhibits the TOF bit and overflow
interrupts until the low byte (TMODL) is written. Reset sets the TIM counter modulo registers.
18.8.4 TIM Channel Status and Control Registers
Each of the TIM channel status and control registers:
Freescale Semiconductor
•
•
•
•
•
Flags input captures and output compares
Enables input capture and output compare interrupts
Selects input capture, output compare, or PWM operation
Selects high, low, or toggling output on output compare
Selects rising edge, falling edge, or any edge as the active input capture trigger
Address: $0023
Address: $0024
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.
Reset the TIM counter before writing to the TIM counter modulo registers.
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Figure 18-8. TIM Counter Modulo Register High (TMODH)
Figure 18-9. TIM Counter Modulo Register Low (TMODL)
Bit 15
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
0
1
1
Figure 18-7. TIM Counter Registers Low (TCNTL)
= Unimplemented
14
6
6
0
6
1
6
6
1
MC68HC908LB8 Data Sheet, Rev. 1
13
5
5
0
5
1
5
5
1
NOTE
NOTE
12
4
4
0
4
1
4
4
1
11
3
3
0
3
1
3
3
1
10
2
2
0
2
1
2
2
1
1
1
0
1
9
1
1
1
1
Bit 0
Bit 0
Bit 0
Bit 8
Bit 0
Bit 0
0
1
1
I/O Registers
197
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