Chapter 14 Port Functions; Features; Basic Configuration Of Ports - NEC UPD703116 User Manual

14.1 Features

• Input dedicated ports : 8
I/O ports: 75
• Ports alternate as I/O pins of other peripheral functions
• Input or output can be specified in bit units

14.2 Basic Configuration of Ports

The V850E/IA1 has a total of 83 on-chip input/output ports (ports 0 to 4, DH, DL, CS, CT, CM), of which 8 are
input-only ports. The port configuration is shown below.
Port 0
Port 1
Port 2
Port 3
Port 4
(1) Functions of each port
The V850E/IA1 has the ports shown below.
Any port can operate in 8-bit or 1-bit units and can provide a variety of controls.
Moreover, besides its function as a port, each has functions as the I/O pins of on-chip peripheral I/O in control
mode.
Refer to (3) Port block diagrams for a block diagram of the block type of each port.
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CHAPTER 14 PORT FUNCTIONS

P00
P07
P10
P15
P20
P27
P30
P37
P40
P47
User's Manual U14492EJ5V0UD
PDH0
Port DH
PDH7
PDL0
Port DL
PDL15
PCS0
Port CS
PCS7
PCT0
Port CT
PCT7
PCM0
Port CM
PCM4