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PFS172 bảng dữ liệu(PDF) 56 Page - PADAUK Technology.

tên linh kiện PFS172
Giải thích chi tiết về linh kiện  8bit MTP Type MCU with 8-bit ADC
PDF  92 Pages
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nhà sản xuất  PADAUK [PADAUK Technology.]
Trang chủ  http://www.padauk.com.tw/
Logo PADAUK - PADAUK Technology.

PFS172 bảng dữ liệu(HTML) 56 Page - PADAUK Technology.

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PFS172
8bit MTP MCU with 8-bit ADC
©Copyright 2020, PADAUK Technology Co. Ltd
Page 56 of 92
PDK-DS-PFS172-EN_V000-May 8, 2020
5.11 IO Pins
All the pins can be independently set into two states output or input by configuring the data registers (pa, pb),
control registers (pac, pbc) and pull-high registers (paph, pbph) or pull-low registers (papl, pbpl). All these
pins have Schmitt-trigger input buffer and output driver with CMOS level. When it is set to output low, the
pull-high / pull-low resistor is turned off automatically. If user wants to read the pin state, please notice that it
should be set to input mode before reading the data port; if user reads the data port when it is set to output
mode, the reading data comes from data register, NOT from IO pad. As an example, Table 6 shows the
configuration table of bit 0 of port A. The hardware diagram of IO buffer is also shown as Fig.17.
Table 6: PA0 Configuration Table
Fig. 17: Hardware diagram of IO buffer
PB4 and PB7 can adjust their drive and sink current by code option PB4_PB7_Drive.
pa.0
pac.0 paph.0 papl.0
Description
X
0
0
0
Input without pull-high / pull-low resistor
X
0
1
0
Input with pull-high resistor
X
0
0
1
Input with pull-low resistor
X
0
1
1
Input with pull-low / pull-high rseistor
0
1
X
X
Output low without pull-high / pull-low resistor
1
1
X
X
Output high without pull-high / pull-low resistor



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