hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 187

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

8.11
8.11.1
With input pins WKP
data can be handled in inverted form.
8.11.2
Table 8.27 shows the registers used by the input/output data inversion function.
Table 8.27 Register Configuration
Name
Serial port control register
Serial Port Control Register (SPCR)
SPCR is an 8-bit readable/writable register that performs RXD
input/output data inversion switching. SPCR is initialized to H'C0 by a reset.
172
Bit
Initial value
Read/Write
Input/Output Data Inversion Function
Overview
Register Configuration and Descriptions
—
—
7
1
0
Figure 8.10 Input/Output Data Inversion Function
to WKP
P3
P4
P3
P4
5
2
4
1
/TXD
/TXD
/RXD
/RXD
—
—
6
1
7
, RXD
31
32
31
32
SPC32
31
R/W
Abbreviation
SPCR
5
0
, and RXD
SPC31
SCINV0
SCINV2
R/W
SCINV1
SCINV3
4
0
32
, and output pins TXD
SCINV3
R/W
R/W
R/W
3
0
31
, RXD
RXD
RXD
TXD
TXD
SCINV2
R/W
Address
H'FF91
31
32
2
0
31
32
32
, TXD
31
SCINV1
and TXD
R/W
31
1
0
, and TXD
SCINV0
32
R/W
, the
0
0
32
pin