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CHAPTER 2 PIN FUNCTION
Preliminary User’s Manual U13420EJ2V0UM00
2.2.8 P80 to P84 (Port 8)
This is a 5-bit input/output port. Besides serving as input/output ports, these pins function as the data input/output,
clock input/output, automatic transmission/reception busy input, and strobe output of serial interface.
The following operating modes can be specified in 1-bit units.
(1) Port mode
These pins function as a 5-bit input/output port. They can be specified in 1-bit units as an input or output ports
with port mode register 8 (PM8). On-chip pull-up resistors can be specified by defining pull-up resistor option
register 8 (PU8).
(2) Control mode
These pins function as the serial interface data input/output, clock input/output, busy input for automatic
transmission/reception, and strobe output.
(a) SI1, SO1
The serial interface serial data input/output pins.
(b) SCK1
The serial interface serial clock input/output pin.
(c) BUSY
The serial interface automatic transmission/reception busy input pin.
(d) STB
The serial interface automatic transmission/reception strobe output pin.
2.2.9 P90 to P92 (Port 9)
This is a 3-bit input/output port. Besides serving as serial interface input/output ports, these pins function as the
data input/output and clock input/output.
The following operating modes can be specified in 1-bit units.
(1) Port mode
These pins function as a 3-bit input/output port. They can be specified in 1-bit units as an input or output ports
with port mode register 9 (PM9). On-chip pull-up resistors can be specified by defining pull-up resistor option
register 9 (PU9).
(2) Control mode
These pins function as the serial interface data input/output and clock input/output.
(a) SI31, SO31
The serial interface serial data input/output pins.
(b) SCK31
The serial interface serial clock input/output pin.
2.2.10 ANI0 to ANI7
The analog input pin of the A/D converter.
Содержание mPD780065 Series
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