CHAPTER 2 PIN FUNCTIONS
User’s Manual U12688EJ4V0UM00
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(4) P30 to P37 (Port 3) ··· 3-state I/O
Port 3 is an 8-bit input/output port that can be set to input or output in 1-bit units.
Besides functioning as a port, in the control mode it operates as the input/output for the real-time pulse unit
(RPU), the external request input and the serial interface (CSI2) input/output. The operation mode can be set
as port or control in 1-bit units, specified by the port 3 mode control register (PMC3).
(a) Port mode
P33 to P37 can be set to input or output in bit units by the port 3 mode register (PM3).
(b) Control mode
P30 to P37 can be set in the port/control mode in bit units by the PMC3 register.
(i)
TO130, TO131 (Timer Output) ··· output
Output pulse signals for timer 1.
(ii) TCLR13 (Timer Clear) ··· input
This is an input pin for external clear signals for timer 1.
(iii) TI13 (Timer Input) ··· input
This is an input pin for an external counter clock for timer 1.
(iv) INTP130 to INTP133 (Interrupt Request from Peripherals) ··· input
These are input pins for external interrupt requests for timer 1.
(v) SO2 (Serial Output)··· output
Outputs CSI2 serial transmit data.
(vi) SI2 (Serial Input)··· input
Inputs CSI2 serial receive data.
(vii) SCK2 (Serial Clock)··· 3-state I/O
This is the input/output pin for the CSI2 serial clock.
Summary of Contents for V850E/MS1 UPD703100
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