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Chapter 2
Pin Functions
User’s Manual U16580EE3V1UD00
(11) P100 to P102 (Port 10) … Input/Output
Port 10 is a 3-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, P100 to P102 operate as RPU input or output
The operation mode can be specified by the port 10 mode control register (PMC10) to port or
control mode for each port pin individually.
(a) Port mode
P100 to P102 can be set to input or output in 1-bit units using the port 10 mode register (PM10).
(b) Control mode
P100 to P102 can be set to port or control mode in 1-bit units using the PMC4 register.
(i) TIUD1 (Timer count pulse input) … Input
Note
This is an external count clock input pin to the up/down counter (TMENC10).
(ii) TCUD1 (Timer control pulse input) … Input
Note
This is an input count operation switching signal to the up/down counter (TMENC10).
(iii) TCLR1 (Timer clear) … Input
Note
This is a clear signal input pin to the up/down counter (TMENC10).
(iv) TICC10, TICC11 (Timer capture input) … Input
Note
These are timer TMENC10 external capture trigger input pins.
(v) TO1 (Timer output) … Output
Note
This pin outputs timer TMENC10 pulse signals.
(vi) TOP80 (Timer output) … Output
This pin outputs timer TMP8 pulse signals.
(12) PAL0 to PAL15 (Port AL) … I/O
Port AL is an 8-bit or a 16-bit I/O port in which input or output can be set for each port pin
individually.
Besides functioning as a port, in control mode, these pins operate as the address bus (A0 to A15)
when memory is expanded externally.
The operation mode can be specified by the port AL mode control register (PMCAL) to port or
control mode for each port pin individually.
(a) Port mode
PAL0 to PAL15 can be set to input or output in 1-bit units using the port AL mode register (PMAL).
(b) Control mode
PAL0 to PAL15 can be set to port or control mode in 1-bit units using the PMCAL register.
(i) A0 to A15 (Address bus) … 3-state output
Note
These are the address output pins of the lower 16 bits of the 22-bit address bus when the
external memory is accessed.
Note:
not available on
μ
PD70F3447
Содержание MuPD70F3187
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