参数资料
型号: PICREF-1
英文描述: SOT-23, Rail-to-Rail Output, Picoamp Input Current Precision Op Amp; Package: SOT; No of Pins: 5; Temperature Range: -40°C to +85°C
中文描述: PICREF - 2文件
文件页数: 47/64页
文件大小: 694K
代理商: PICREF-1
50
CHAPTER 3
PIN FUNCTION (
PD780308 SUBSERIES)
User’s Manual U11377EJ3V0UD
3.2.5 P70 to P72 (Port 7)
These are 3-bit I/O ports. Besides serving as I/O ports, they function as serial interface data I/O and clock I/O.
The following operating modes can be specified in 1-bit units.
(1) Port mode
These ports function as 3-bit I/O ports. They can be specified as input or output ports in 1-bit units with port
mode register 7 (PM7). When they are used as input ports, internal pull-up resistors can be used by defining
pull-up resistor option register L (PUOL).
(2) Control mode
These ports function as serial interface data I/O and clock I/O.
(a) SI2, SO2
Serial interface serial data I/O pins.
(b) SCK2
Serial interface serial clock I/O pin.
(c) RxD, TxD
Asynchronous serial interface serial data I/O pins.
(d) ASCK
Asynchronous serial interface serial clock input pin.
Caution When this port is used as a serial interface, the I/O and output latches must be set according
to the function used. For the setting, refer to Table 17-2 Serial Interface Channel 2 Operating
Mode Settings.
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