MC68HC908JK8CP Freescale Semiconductor, MC68HC908JK8CP Datasheet - Page 106

• Manufacturer Part Number: MC68HC908JK8CP
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908JK8CP

• Cpu Family: HC08
• Device Core Size: 8b
• Frequency (max): 8MHz
• Interface Type: SCI
• Program Memory Type: Flash
• Program Memory Size: 8KB
• Total Internal Ram Size: 256Byte
• # I/os (max): 15
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 13-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 20
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

Timer Interface Module (TIM)
8.4 Functional Description
Figure 8-1
that can operate as a free-running counter or a modulo up-counter. The TIM counter provides the timing
reference for the input capture and output compare functions. The TIM counter modulo registers,
TMODH:TMODL, control the modulo value of the TIM counter. Software can read the TIM counter value
at any time without affecting the counting sequence.
The two TIM channels (per timer) are programmable independently as input capture or output compare
channels.
Figure 8-2
106
BUS CLOCK
INTERNAL
(FOR TIM2 ONLY)
T2CLK
TSTOP
shows the structure of the TIM. The central component of the TIM is the 16-bit TIM counter
summarizes the timer registers.
TRST
16-BIT COMPARATOR
16-BIT COMPARATOR
16-BIT COMPARATOR
References to either timer 1 or timer 2 may be made in the following text by
omitting the timer number. For example, TSC may generically refer to both
T1SC and T2SC.
16-BIT COUNTER
TMODH:TMODL
TCH0H:TCH0L
TCH1H:TCH1L
16-BIT LATCH
16-BIT LATCH
CHANNEL 0
CHANNEL 1
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
PRESCALER
Figure 8-1. TIM Block Diagram
ELS0B
ELS0B
MS0A
MS0A
PS2
ELS0A
ELS0A
PRESCALER SELECT
NOTE
PS1
CH0F
MS0B
CH1F
PS0
CH0MAX
CH1MAX
CH01IE
CH0IE
CH1IE
TOV0
TOV1
TOIE
TOF
INTERRUPT
INTERRUPT
INTERRUPT
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
PORT
PORT
Freescale Semiconductor
T[1,2]CH0
T[1,2]CH1