參數(shù)資料
型號: HD40C4344R
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-series microcomputer(4位單片微計算機)
中文描述: 4位HMCS400系列微電腦(4位單片微計算機)
文件頁數(shù): 58/100頁
文件大小: 610K
代理商: HD40C4344R
HD404344R Series/HD404394 Series
58
Using Timer C Registers
Timer C sets the operation and the read/write data according to the following registers.
Timer mode register C (TMC: $00D)
Timer write register C (TWCL: $00E, TWCU: $00F)
Timer read register C (TRCL: $00E, TRCU: $00F)
Timer mode register C (TMC: $00D): Four-bit write-only register that selects the free-running/reload
timer, input clock, and prescaler division ratio, as shown in figure 36. It is reset to $0 by an MCU reset.
The data written to timer mode register C is valid after two instructions cycles. The initial setting of
timer C, which is set by writing to timer write register C (TWCL: $00E, TWCU: $00F), should be
programmed to execute only after a mode change has been effective.
Bit
Initial value
Read/Write
Bit name
3
0
W
TMC3
2
0
W
TMC2
0
0
W
TMC0
1
0
W
TMC1
Timer mode register C (TMC: $00D)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2048t
cyc
512t
cyc
128t
cyc
32t
cyc
8t
cyc
4t
cyc
2t
cyc
TMC2
TMC0
TMC1
Input Clock Period
TMC3
0
1
Free-Running/Reload
Timer Selection
Free-running timer
Reload timer
1024t
cyc
Figure 36 Timer Mode Register C (TMC)
相關(guān)PDF資料
PDF描述
HD404342R 4-bit HMCS400-series microcomputer(4位單片微計算機)
HD404344R 4-bit HMCS400-series microcomputer(4位單片微計算機)
HD404391S 4-bit HMCS400-series microcomputer(4位單片微計算機)
HD404392S 4-bit HMCS400-series microcomputer(4位單片微計算機)
HD404341R 4-bit HMCS400-series microcomputer(4位單片微計算機)
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