Pin Functions - Renesas Hitachi H8S/2194 Series Hardware Manual

11.6.3

Pin Functions

This section describes the port 4 pin functions and their selection methods.
(1) P47/FTCI
P47/FTCI is switched as shown below according to the PCR47 bit in PCR4.
PCR47 Pin Function
0 P47 input pin
1 P47 output pin
(2) P46/FTOB
P46/FTOB is switched as shown below according to the PCR46 bit in PCR4 and the OEB bit
in TOCR.
OEB PCR46
0 0
1
1
*
Note: Don't care.
*
(3) P45/FTOA
P45/FTOA is switched as shown below according to the PCR45 bit in PCR4 and the OEA bit
in TOCR.
OEA PCR45
0 0
1
1
*
Note: * Don't care.
(4) P44/FTID
P44/FTID is switched as shown below according to the PCR44 bit in PCR4.
PCR44 Pin Function
0 P44 input pin
1 P44 output pin
Rev. 2.0, 11/00, page 264 of 1037
Pin Function
P46 input pin
P46 output pin
FTOB output pin
Pin Function
P45 input pin
P45 output pin
FTOA output pin
FTID input pin