NEC V850E/MS1 UPD703100 User Manual page 59

(12) P110 to P117 (Port 11) ··· 3-state I/O
Port 11 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 an input/output for real-time pulse unit (RPU),
external interrupt request, input and serial interface (CSI3) input/output.
The operation mode can be set as port or control in 1-bit units, specified by the port 11 mode control register
(PMC11).
(a) Port mode
P110 to P117 can be set to input or output in bit units by the port 11 mode register (PM11).
(b) Control mode
P110 to P117 can be set in the port/control mode in bit units by the PMC11 register.
(i) TO140, TO141 (Timer Output) ··· output
Output the pulse signal of timer 1.
(ii) TCLR14 (Timer Clear) ··· input
This is an input pin for external clear signals for timer 1.
(iii) TI14 (Timer Input) ··· input
This is an input pin for an external counter clock for timer 1.
(iv) INTP140 to INTP143 (Interrupt Request from Peripherals) ··· input
These are input pins for external interrupt requests for timer 1.
(v) SO3 (Serial Output 3)··· output
Outputs the CSI3 serial transfer data.
(vi) SI3 (Serial Input 3)··· input
Inputs the CSI3 serial receive data.
(vii) SCK3 (Serial Clock 3)··· 3-state I/O
This is the input/output pin for the CSI3 serial clock.
CHAPTER 2 PIN FUNCTIONS
User's Manual U12688EJ4V0UM00
59