參數(shù)資料
型號: HD4074318H
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-series microcomputer
中文描述: 4位HMCS400系列微機
文件頁數(shù): 39/66頁
文件大小: 305K
代理商: HD4074318H
HD404318 Series
39
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: $00D)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2048t
cyc
512t
cyc
128t
cyc
32t
cyc
8t
cyc
4t
cyc
2t
cyc
TMC2
TMC0
TMC1
Input Clock Period
TMC3
0
1
Free-Running/Reload
Timer Selection
Free-running timer
Reload timer
1024t
cyc
Figure 29 Timer Mode Register C (TMC)
T (N + 1)
T 256
T
T (256 – N)
TMC3 = 0
(Free-running
timer)
TMC3 = 1
(Reload timer)
Notes:
T: Input clock period supplied to counter. (The clock source and system clock division ratio are
determined by timer mode register C.)
N: Value of timer write register C. (When N = 255 ($FF), PWM output is fixed low.)
Figure 30 PWM Output Waveform
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