參數(shù)資料
型號: HD404318H
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-series microcomputer
中文描述: 4位HMCS400系列微機(jī)
文件頁數(shù): 33/66頁
文件大小: 305K
代理商: HD404318H
HD404318 Series
33
Timer B
Timer B is an 8-bit multifunction timer that includes free-running, reload, and input capture timer features.
These are described as follows.
By setting timer mode register B1 (TMB1: $009), one of seven internal clocks supplied from prescaler
S can be selected, or timer B can be used as an external event counter
By setting timer mode register B2 (TMB2: $026), detection edge type of EVNB can be selected
By setting timer write register BL, BU (TWBL, BU: $00A, $00B), timer counter B (TCB) can be
written to during reload timer operation
By setting timer read register BL, BU (TRBL, BU: $00A, $00B), the contents of timer counter B can
be read out
Timer B can be used as an input capture timer to count the clock cycles between trigger edges input as
an external event
An interrupt can be requested when timer counter B overflows or when a trigger input edge is received
during input capture operation
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