參數(shù)資料
型號(hào): MC68HC05F8FU
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 1.8 MHz, MICROCONTROLLER, PQFP64
封裝: PLASTIC, QFP-64
文件頁數(shù): 82/126頁
文件大?。?/td> 1084K
代理商: MC68HC05F8FU
MC68HC05F8
MOTOROLA
6-11
TIMERS
6
6.2.3
Timer B Counter
Timer B Counter
High byte - $25, Low byte - $26
Timer B Alternate Counter
High byte - $27, Low byte - $28
The double-byte, reloadable timer counter can be read from either of two locations, $25 & $26
(Timer B counter register) or $27 & $28 (Timer B counter alternate register). Reading only the
least signicant byte (LSB) of the free-running counter ($26 or $28) receives the count value at
Figure 6-6 Reloadable Timer Block Diagram
MC68HC05F8 INTERNAL BUS
ACTIVE
16 BIT FREE
RUNNING
COUNTER
ALTERNATE
REGISTER
8 BIT
BUFFER
16 BIT TIMER
PRESET
REGISTER
UNDERFLOW
DETECT
CRCUIT
&
INTERNAL
PROCESSOR
CLOCK
TIMER B CONTROL REGISTER
÷4/8/16/32
TCSB1
TCSB0
TCSB1 TCSB0 TMBE TBOIE
TUF
&
LOGIC
LOAD
TIMER B INTERRUPT
TPG
57
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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