MC68HC908QT2CPE Freescale, MC68HC908QT2CPE Datasheet - Page 129

• Manufacturer Part Number: MC68HC908QT2CPE
• Manufacturer: Freescale

Specifications of MC68HC908QT2CPE

• Cpu Family: HC08
• Device Core Size: 8b
• Frequency (max): 8MHz
• Total Internal Ram Size: 128Byte
• # I/os (max): 6
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 4-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 8
• Package Type: PDIP
• Program Memory Type: Flash
• Program Memory Size: 1.5KB
• Lead Free Status / RoHS Status: Compliant

14.9.3 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.
14.9.4 TIM Channel Status and Control Registers
Each of the TIM channel status and control registers does the following:
Freescale Semiconductor
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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
Selects output toggling on TIM overflow
Selects 0% and 100% PWM duty cycle
Selects buffered or unbuffered output compare/PWM operation
Address: $0023
Address: $0024
Reset the TIM counter before writing to the TIM counter modulo registers.
Reset:
Reset:
Read:
Read:
Write:
Write:
Figure 14-6. TIM Counter Modulo Registers (TMODH:TMODL)
Bit 15
Bit 7
Bit 7
Bit 7
1
1
TMODH
TMODL
Bit 14
MC68HC908QY/QT Family Data Sheet, Rev. 6
Bit 6
6
1
6
1
Bit 13
Bit 5
5
1
5
1
NOTE
Bit 12
Bit 4
4
1
4
1
Bit 11
Bit 3
3
1
3
1
Bit 10
Bit 2
2
1
2
1
Bit 9
Bit 1
1
1
1
1
Input/Output Registers
Bit 0
Bit 8
Bit 0
Bit 0
1
1
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