Input/Output Data Inversion Function; Overview - Renesas H8 Series Hardware Manual

Section 8 I/O Ports
Pin Pin Functions and Selection Method
PB /AN /extU Switching is accomplished by combining CH3 to CH0 in AMR and VINTUSEL in
1 1
LVDCR as shown below. Note that VINTUSEL is implemented on the H8/38124
Group only.
Note: The extU pin is implemented on the H8/38124 Group only.
PB /AN /extD Switching is accomplished by combining CH3 to CH0 in AMR and VINTDSEL in
0 0
LVDCR as shown below. Note that VINTDSEL is implemented on the H8/38124
Group only.
Note: The extD pin is implemented on the H8/38124 Group only.
8.12

Input/Output Data Inversion Function

8.12.1

Overview

With input pin RXD
32
Rev. 7.00 Mar 10, 2005 page 240 of 652
REJ09B0042-0700
VINTUSEL
CH3 to CH0 Not B'0101
Pin function PB
VINTDSEL
CH3 to CH0 Not B'0100
Pin function PB
and output pin TXD
32
P4 /RXD
1 32
P4 /TXD
2 32
Figure 8.11 Input/Output Data Inversion Function
0
B'0101
input pin AN
1 1
0
B'0100
input pin AN
0 0
, the data can be handled in inverted form.
SCINV2
SCINV3
input pin extU input pin
input pin extD input pin
*: Don't care
RXD
32
TXD
32
1
*
1
*