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Chapter 2
Pin Functions
Preliminary User’s Manual U15839EE1V0UM00
(5)
P50 to P56 (Port 5) … Input/output
Port 5 is a 7-bit input/output port in which input or output can be set in 1-bit units.
Besides functioning as an input/output port, in control mode, P50 to P56 operate as the real-time
pulse unit (RPU) input/output, as the serial interface (FCAN4
NOTE
) and as external interrupt
request input.
An operation mode of port or control mode can be selected for each bit and specified by the port 5
mode control register (PMC5).
(a) Port mode
P50 to P56 can be set to input or output in 1-bit units using the port 5 mode register (PM5).
(b) Control mode
P50 to P56 can be set to port or control mode in 1-bit units using PMC5.
(c) TO0 (Timer output) … Output
This pin output a timer C pulse signal.
(d) TI0, TI1 (Timer input) … Input
These pins are the timer C external capture trigger input pins.
(e) CTXD4 (Transmit data for controller area network) … Output
This pin outputs FCAN serial transmit data.
(f) CRXD4 (Receive data for controller area network) … Input
This pin inputs FCAN serial receive data.
(g) INPT20, INTP21, INTP4, INTP5 (Interrupt request from peripherals) … Input
These are external interrupt request input pins.
Note: CAN module 4 is available in the derivatives µPD703129 (A) and µPD703129 (A1) only.
Summary of Contents for mPD703128
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