Port 9 - NEC V850ES/SA2 UPD703201 Manual

4.3.7

Port 9

Port 9 can be set to the input or output mode in 1-bit units.
The number of I/O port bits each product is the same.
Commercial Name
V850ES/SA2
V850ES/SA3
(1) Functions of port 9
Input/output data can be specified in 1-bit units by using port register 9 (P9).
Can be set to the input or output mode in 1-bit units by using port mode register 9 (PM9).
Can be set to the port mode or control mode (alternate function) in 1-bit units by using port mode control
register 9 (PMC9).
N-ch open-drain output can be set in 1-bit units by using port function register 9 (PF9).
Control mode 1 or control mode 2 can be specified in 1-bit units by using port function control register 9
(PFC9).
The internal pull-up resistor can be connected in 1-bit units by using pull-up resistor option register 9 (PU9).
The valid edge of the external interrupt (alternate function) can be set in 1-bit units by using external
interrupt falling edge specification register 9 (INTF9) and external interrupt rising edge specification register
9 (INTR9).
Port 9 has an alternate function as the following pins.
Pin Name
Port 9 P90
P91
P92
P93
P94
P95
P96
P97
P98
P99
P910
P911
P912
P913
P914
P915
Note Software pull-up function
132
CHAPTER 4 PORT FUNCTIONS
16-bit I/O port
16-bit I/O port
Table 4-10. Alternate-Function Pins of Port 9
Alternate-Function Pin I/O
A0 I/O
A1
A2/INTP5
A3/INTP6
A4/TO2
A5/TO3
A6/TO4
A7/TO5
A8/RXD1
A9/TXD1
A10/SI2
A11/SO2
A12/SCK2
A13/SI3
A14/SO3
A15/SCK3
Preliminary User's Manual U15905EJ1V0UD
Number of I/O Port Bits
Note
PULL
None
Remark
−