參數(shù)資料
型號: HD404324
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): 50/94頁
文件大?。?/td> 573K
代理商: HD404324
HD404328 Series
50
TMC
Bit 2
Bit 1
Bit 0
Input Clock Period
0
0
0
2048 t
cyc
1024 t
cyc
512 t
cyc
128 t
cyc
32 t
cyc
8 t
cyc
4 t
cyc
2 t
cyc
1
1
0
1
1
0
0
1
1
0
1
Pulse Output
The MCU has a built-in pulse output function called BUZZ. The pulse frequency can be selected from the
prescaler S’ s outputs, and the output frequency depends on the state of port mode register C (PMRC:
$012), as shown in table 27. The duty cycle of the pulse output is fixed at 50%. When the pulse output
function is used, the R1
3
/BUZZ pin must be specified as BUZZ by PMRC.
Table 27
Port Mode Register C
PMRC
Bit 1
Bit 0
Prescaler Division Ratio
0
0
÷
1024
÷
512
÷
256
÷
128
1
1
0
1
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