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TMP86FS49AIUG Datasheet(PDF) 71 Page - Toshiba Semiconductor

Part # TMP86FS49AIUG
Description  8 Bit Microcontroller
PDF  296 Pages
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMP86FS49AIUG Datasheet(HTML) 71 Page - Toshiba Semiconductor

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Page 55
TMP86FS49AIUG
5.4
Port P3 (P37 to P30) (Large Current Port)
Port P3 is an 8-bit input/output port.
When used as an input port, the corresponding output latch (P3DR) should be set to "1".
During reset, the P3DR is initialized to "1".
P3 port output latch (P3DR) and P3 port terminal input (P3PRD) are located on their respective address.
When read the output latch data, the P3DR should be read. When read the terminal input data, the P3PRD register
should be read.
Note: i = 7 to 0
Figure 5-5 Port 3
P3DR
(0003H)
76
543
21
0
P37
P36
P35
P34
P33
P32
P31
P30
(Initial value: 1111 1111)
R/W
P3PRD
(000DH)
Read only
P37
P36
P35
P34
P33
P32
P31
P30
Data output (P3DR)
STOP
OUTEN
DQ
P3i
Data input (P3PRD)
Output latch read (P3DR)



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