參數(shù)資料
型號(hào): HD40A4668
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
文件頁數(shù): 89/142頁
文件大?。?/td> 894K
代理商: HD40A4668
HD404669 Series
89
LSB
MSB
1
2
3
4
5
6
7
8
Transmit clock
Serial output
data
Serial input
data latch timing
Figure 66 Serial Interface Output Timing
Port Mode Register A (PMRA: $004):
This register has the following functions (figure 67).
R4
2
/SI
1
pin function selection
R4
3
/SO
1
pin function selection
Port mode register A (PMRA: $004) is a 2-bit write-only register. It is reset to "--00" by an MCU reset or
when the MCU switches to stop mode.
Bit
Initial value
Read/Write
Bit name
3
Not used
2
Not used
0
0
W
PMRA0
1
0
W
PMRA1
PMRA0
0
1
R4
3
/SO
1
mode selection
R4
3
1
SO
Port mode register A (PMRA: $004)
PMRA1
0
1
R4
2
/SI
1
mode selection
R4
2
SI
1
Figure 67 Port Mode Register A (PMRA)
相關(guān)PDF資料
PDF描述
HD40A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
HD404668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
HD404669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
HD407A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
HD404719FS Five timer/counters
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參數(shù)描述
HD40A4668H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
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