Section 8 I/O Ports
Rev. 7.00 Mar 10, 2005 page 240 of 652
REJ09B0042-0700
Pin Pin Functions and Selection Method
PB
1
/AN
1
/extU Switching is accomplished by combining CH3 to CH0 in AMR and VINTUSEL in
LVDCR as shown below. Note that VINTUSEL is implemented on the H8/38124
Group only.
VINTUSEL 0 1
CH3 to CH0 Not B'0101 B'0101 *
Pin function PB
1
input pin AN
1
input pin extU input pin
Note: The extU pin is implemented on the H8/38124 Group only.
PB
0
/AN
0
/extD
Switching is accomplished by combining CH3 to CH0 in AMR and VINTDSEL in
LVDCR as shown below. Note that VINTDSEL is implemented on the H8/38124
Group only.
VINTDSEL 0 1
CH3 to CH0 Not B'0100 B'0100 *
Pin function PB
0
input pin AN
0
input pin extD input pin
Note: The extD pin is implemented on the H8/38124 Group only.
*: Don’t care
8.12 Input/Output Data Inversion Function
8.12.1 Overview
With input pin RXD
32
and output pin TXD
32
, the data can be handled in inverted form.
SCINV2
RXD
32
P4
1
/RXD
32
SCINV3
TXD
32
P4
2
/TXD
32
Figure 8.11 Input/Output Data Inversion Function
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