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TMP86FS28DFG датащи(PDF) 81 Page - Toshiba Semiconductor

номер детали TMP86FS28DFG
подробное описание детали  8 Bit Microcontroller
PDF  272 Pages
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производитель  TOSHIBA [Toshiba Semiconductor]
домашняя страница  http://www.semicon.toshiba.co.jp/eng
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TMP86FS28DFG датащи(HTML) 81 Page - Toshiba Semiconductor

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TMP86FS28DFG
5.9 Port P8 (P80 to P87)
Port P8 is an 8-bit input/output port that can also be used for LCD segment output.
A reset initializes the output latch (P8DR) to “1”, the Pch control (P8OUTCR) to “0”, and the LCD output control
register (P8LCR) to “0”.
To use a pin in Port P8 as an input port, set P8DR to “1” and then set the corresponding bit in P8LCR and
P8OUTCR to “0”.
To use a pin in Port P8 as an LCD segment output, set the corresponding bit in P8LCR to “1”.
The output circuit of Port P8 can be set either as sink open-drain output (“0”) or CMOS output (“1”) individually
for each bit in P8OUTCR.
Port P8 has a separate data input register. The output latch state can be read from the P8DR register, and the pin
state can be read from the P8PRD register.
Note: An asterisk (*) indicates that either “1” or “0” can be set.
Figure 5-10 Port P8
Table 5-11 Register Programming for Port P8 (P80 to P87)
Function
Port Input
P8DR
P8OUTCR
P8LCR
Port input
“1”
“0”
“0”
Port “0” output
“0”
Set as
appropriate.
“0”
Port “1” output
“1”
“0”
LCD segment output
*
*
“1”
Data input (P8PRD)
Output latch read (P8DR)
STOP
OUTEN
P8OUTCRi input
Data output (P8DR)
P8OUTCRi
P8i
Note) i = 7~0
DQ
DQ
LCD data output
P8LCRi
DQ
P8LCRi input
Output latch



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