參數(shù)資料
型號(hào): HD404669
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): 46/142頁
文件大?。?/td> 894K
代理商: HD404669
HD404669 Series
46
V
CC
Buffer control signal
Output data
Input data
DCD
PDR
Input control signal
Pull-down MOS
Pull-down MOS
control signal
HLT
MIS3
Figure 28 I/O Buffer Configuration (with Pull-Down MOS)
Table 14 I/O Pin Control by Register Settings (with Pull-Up MOS)
MIS3 (bit 3 of MIS)
0
1
DCD, DCR
0
1
0
1
PDR
0
1
0
1
0
1
0
1
CMOS buffer
PMOS
On
On
NMOS
On
On
Pull-up MOS
Note:
On
On
1. — indicates off status.
2. PDR is not assigned to a RAM address. It is accessed with special input/output instructions.
Table 15 I/O Pin Control by Register Settings (with Pull-Down MOS)
MIS3 (bit 3 of MIS)
0
1
DCD
0
1
0
1
PDR
0
1
0
1
0
1
0
1
CMOS buffer
PMOS
On
On
NMOS
On
On
Pull-down
MOS
Note:
On
On
1. — indicates off status.
2. PDR is not assigned to a RAM address. It is accessed with special input/output instructions.
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