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Chapter 2
Pin Functions
User’s Manual U16580EE3V1UD00
(9)
P80 to P86 (Port 8) … Input/Output
Port 8 is a 7-bit I/O port in which input or output can be set for each port pin individually.
Besides functioning as an I/O port, in control mode, P80 to P86 operate as serial interface (CSI30,
CSIB0). Additionally external interrupt request signal inputs are available in port input mode.
The operation mode can be specified by the port 8 mode control register (PMC8) to port or control
mode for each port pin individually.
(a) Port mode
P80 to P86 can be set to input or output in 1-bit units using the port 8 mode register (PM8).
(i) INTP6, INTP7, INTP8 (Interrupt request from peripherals) … Input
These are external interrupt request input pins, which are simultaneously enabled in port input
mode.
(b) Control mode
P80 to P86 can be set to port or control mode in 1-bit units using the PMC8 register.
(i) SO30 (Serial output) … Output
This pin outputs CSI30 serial transmit data.
(ii) SI30 (Serial input) … Input
This pin inputs CSI30 serial receive data.
(iii) SCK30 (Serial clock) … I/O
This is the CSI30 serial clock I/O pin.
(iv) SCS300 to SCS303 (Serial chip select) … Output
These pins output CSI30 serial chip select signals.
(v) SSB0 (Serial slave select signal) … Input
This pin inputs CSIB0 slave select signal.
Содержание MuPD70F3187
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Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
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