MC68HC908GR8CD Freescale Semiconductor, MC68HC908GR8CD Datasheet - Page 229

• Manufacturer Part Number: MC68HC908GR8CD
• Description: 8-bit Microcontrollers - MCU 8 Bit 8MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908GR8CD

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: HC08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 384 B
• Operating Supply Voltage: 3 V to 5 V
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Data Rom Size: 64 KB
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 21
• Program Memory Type: Flash

Chapter 22
Timer Interface Module (TIM)
22.1 Introduction
This section describes the timer interface (TIM) module. The TIM on this part is a 2-channel and
a1-channel timer that provides a timing reference with input capture, output compare, and
pulse-width-modulation functions.
timer interface modules which are denoted as TIM1 and TIM2.
For further information regarding timers on M68HC08 family devices, please consult the HC08 Timer
Reference Manual, TIM08RM/AD.
22.2 Features
Features of the TIM include:
22.3 Pin Name Conventions
The text that follows describes both timers, TIM1 and TIM2. The TIM input/output (I/O) pin names are
T[1,2]CH0 (timer 1 channel 0, timer 2 channel 0) and T[1]CH1 (timer channel 1), where “1” is used to
indicate TIM1 and “2” is used to indicate TIM2. The two TIMs share three I/O pins with three port D I/O
port pins. The full names of the TIM I/O pins are listed in
the text that follows.
Freescale Semiconductor
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Three input capture/output compare channels:
–
–
Buffered and unbuffered pulse-width-modulation (PWM) signal generation
Programmable TIM clock input with 7-frequency internal bus clock prescaler selection
Free-running or modulo up-count operation
Toggle any channel pin on overflow
TIM counter stop and reset bits
Rising-edge, falling-edge, or any-edge input capture trigger
Set, clear, or toggle output compare action
Pin Names:
TIM Generic Pin Names:
Full TIM
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
Table 22-1. Pin Name Conventions
Figure 22-1
TIM1
TIM2
is a block diagram of the TIM. This particular MCU has two
PTD4/ATD12/T1CH0
PTD6/ATD14/T2CH0
T[1,2]CH0
Table
22-1. The generic pin names appear in
PTD5/T1CH1
T[1,2]CH1
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