CHAPTER 2 PIN FUNCTIONS
User’s Manual U12688EJ4V0UM00
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(11) P100 to P107 (Port 10) ··· 3-state I/O
Port 10 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 DMA termination signal (terminal count) from DMA controller.
The operation mode can be set as port or control in 1-bit units, specified by the port 10 mode control register
(PMC10).
(a) Port mode
P100 to P107 can be set to input or output in bit units by the port 10 mode register (PM10).
(b) Control mode
P100 to P107 can be set in the port/control mode in bit units by the PMC10 register.
(i)
TO120, TO121 (Timer Output) ··· output
Output the pulse signal of timer 1.
(ii) TCLR12 (Timer Clear) ··· input
This is an input pin for external clear signals for timer 1.
(iii) TI12 (Timer Input) ··· input
This is an input pin for an external counter clock for timer 1.
(iv) INTP120 to INTP123 (Interrupt Request from Peripherals) ··· input
These are input pins for external interrupt requests for timer 1.
(v) TC0 to TC3 (Terminal Count) ··· output
This signal shows that DMA transfer by the DMA controller is terminated.
This signal becomes active for 1 clock cycle at the fall of the CLKOUT signal.
Summary of Contents for V850E/MS1 UPD703100
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