Port Cs - NEC V850ES/SA2 UPD703201 Manual

4.3.10 Port CS

Port CS can be set to the input or output mode in 1-bit units.
The number of I/O port bits differs depending on the product.
Commercial Name
V850ES/SA2
V850ES/SA3
(1) Functions of port CS
Input/output data can be specified in 1-bit units by using port register CS (PCS).
Can be set to the input or output mode in 1-bit units by using port mode register CS (PMCS).
Can be set to the port mode or control mode (alternate function) in 1-bit units by using port mode control
register CS (PMCCS).
Port CS has an alternate function as the following pins.
Pin Name
Port CS PCS0
PCS1
PCS2
PCS3
Note 2
PCS4
Note 2
PCS5
Note 2
PCS6
Note 2
PCS7
Notes 1. Software pull-up function
2. V850ES/SA3 only
156
CHAPTER 4 PORT FUNCTIONS
4-bit I/O port
8-bit I/O port
Table 4-14. Alternate-Function Pins of Port CS
Alternate-Function Pin I/O
CS0 I/O
CS1
CS2
CS3
−
−
−
−
Preliminary User's Manual U15905EJ1V0UD
Number of I/O Port Bits
Note 1
PULL
None
Remark
−