参数资料
型号: MC68HC05J5ADWR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20
封装: SOIC-20
文件页数: 56/106页
文件大小: 1069K
代理商: MC68HC05J5ADWR2
July 16, 1999
GENERAL RELEASE SPECIFICATION
MC68HC05J5A
MULTI-FUNCTION TIMER
MOTOROLA
REV 2.1
8-1
SECTION 8
MULTI-FUNCTION TIMER
The Multi-Function Timer module is a 15-stage ripple counter with Timer Over
Flow (TOF), Real Time Interrupt (RTI), COP Watchdog, and the Power-On Reset
delay function.
Figure 8-1. Multi-Function Timer Block Diagram
To Reset
Logic
COP
Clear
MC68HC05 Internal Bus
$09 TCR
7-bit counter
Interrupt Circuit
$08 TCSR
RTI Select Circuit
Overflow
Circuit
Detect
COP Watchdog
Resetable Timer
To Interrupt
Logic
8
fop/2
2
fop/2
10
POR
TCBP
TCSR
TCR
Internal
Timer Clock
(NTF1)
TOF
RTIF
TOFE RTIE
RT1
RT0
RTIFR
TOFR
Timer Control & Status Register
Timer Counter Register (TCR)
÷4
fop/2
8
MUX
fop/2
12
÷2 14
÷2 15
÷2 17
÷2 16
(÷8)
OSCDLY
(mask option)
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