MC908GZ32VFAER Freescale Semiconductor, MC908GZ32VFAER Datasheet - Page 263
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MC908GZ32VFAER
Manufacturer Part Number
MC908GZ32VFAER
Description
IC MCU 8BIT 32K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GZ60CFJE.pdf
(352 pages)
Specifications of MC908GZ32VFAER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GZ32VFAER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 18
Timer Interface Module (TIM1)
18.1 Introduction
This section describes the timer interface module (TIM1). TIM1 is a two-channel timer that provides a
timing reference with input capture, output compare, and pulse-width-modulation functions.
is a block diagram of the TIM1.
18.2 Features
Features of the TIM1 include the following:
18.3 Functional Description
Figure 18-2
counter that can operate as a free-running counter or a modulo up-counter. The TIM1 counter provides
the timing reference for the input capture and output compare functions. The TIM1 counter modulo
registers, T1MODH:T1MODL, control the modulo value of the TIM1 counter. Software can read the TIM1
counter value at any time without affecting the counting sequence.
The two TIM1 channels are programmable independently as input capture or output compare channels.
18.3.1 TIM1 Counter Prescaler
The TIM1 clock source is one of the seven prescaler outputs. The prescaler generates seven clock rates
from the internal bus clock. The prescaler select bits, PS[2:0], in the TIM1 status and control register
(T1SC) select the TIM1 clock source.
18.3.2 Input Capture
With the input capture function, the TIM1 can capture the time at which an external event occurs. When
an active edge occurs on the pin of an input capture channel, the TIM1 latches the contents of the TIM1
counter into the TIM1 channel registers, T1CHxH:T1CHxL. The polarity of the active edge is
programmable. Input captures can generate TIM1 central processor unit (CPU) interrupt requests.
Freescale Semiconductor
•
•
•
•
•
•
Two input capture/output compare channels
–
–
Buffered and unbuffered pulse width modulation (PWM) signal generation
Programmable TIM1 clock input with 7-frequency internal bus clock prescaler selection
Free-running or modulo up-count operation
Toggle any channel pin on overflow
TIM1 counter stop and reset bits
Rising-edge, falling-edge, or any-edge input capture trigger
Set, clear, or toggle output compare action
shows the structure of the TIM1. The central component of the TIM1 is the 16-bit TIM1
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
Figure 18-2
263
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