參數(shù)資料
型號: HD407A4369
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系列微機(4位單片微計算機)
文件頁數(shù): 71/115頁
文件大?。?/td> 710K
代理商: HD407A4369
HD404369 Series
71
Alarm Output Function
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: $025).
The duty cycle of the pulse output is fixed at 50%.
Port Mode Register C (PMRC: $025):
Four-bit write-only register that selects the alarm frequencies as
shown in figure 57. It is reset to $0 by MCU reset.
Port Mode Register A (PMRA: $004):
Four-bit write-only register that selects D
3
/BUZZ pin function as
shown in figure 51. It is reset to $0 by MCU reset.
I
÷
2
÷
5
÷
1
÷
2
Selector
System
clock
PER
Prescaler S (PSS)
2
Alarm output
control signal
BUZZ
Alarm output
controller
Port mode
register C
(PMRC)
Port mode
register A
(PMRA)
Figure 56 Alarm Output Function Block Diagram
相關(guān)PDF資料
PDF描述
HD4043612 4-bit HMCS400-Series microcomputer(4位單片微計算機)
HD404369 4-bit HMCS400-Series microcomputer
HD404369H 4-bit HMCS400-Series microcomputer
HD404369S 4-bit HMCS400-Series microcomputer
HD404369F 4-bit HMCS400-Series microcomputer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD407A4369F 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer
HD407A4369H 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer has an A/D converter
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