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User’s Manual U14492EJ3V0UD
CHAPTER 14 PORT FUNCTIONS
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 DH
P00
P07
P10
P15
P20
P27
P30
P37
P40
P47
PDH0
PDH7
PDL0
PDL15
PCS0
PCS7
PCT0
PCT7
PCM0
PCM4
Port DL
Port CS
Port CT
Port CM
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.
Содержание V850E/IA1 mPD703116
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