HD6417751RBP240V Datasheet, PDF (1024/1226 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

22. PCI Controller (PCIC)
Bits 31 to 19—Reserved: These bits always return 0 when read. Always write 0 to these bits
when writing.
Bit 18—Port 2 Enable (PORT2EN): Provides the enable control for the port 2.
Bit 18: PORT2EN
0
1
Description
Do not use pins PCIGNT4 or PCIREQ4 as ports
Use pins PCIGNT4 or PCIREQ4 as ports
(Initial value)
Bit 17—Port 1 Enable (PORT1EN): Provides the enable control for the port 1.
Bit 17: PORT1EN
0
1
Description
Do not use pins PCIGNT3 or PCIREQ3 as ports
Use pins PCIGNT3 or PCIREQ3 as ports
(Initial value)
Bit 16—Port 0 Enable (PORT0EN): Provides the enable control for the port 0.
Bit 16: PORT0EN
0
1
Description
Do not use pins PCIGNT2 or PCIREQ2 as ports
Use pins PCIGNT2 or PCIREQ2 as ports
(Initial value)
Bits 15 to 6—Reserved: These bits always return 0 when read. Always write 0 to these bits when
writing.
Bit 5—Port 2 Pull-up Resistance Control (PB2PUP): Controls pull-up resistance when
PCIREQ4 pin is used as port.
Bit 5: PB2PUP
0
1
Description
Pull-up PCIREQ4 pin
Do not pull-up PCIREQ4 pin
(Initial value)
Bit 4—Port 2 Input/Output Control (PB2IO): Controls input or output when PCIREQ4 is used
as a port.
Bit 4: PB2IO
0
1
Description
Set PCIREQ4 pin for input
Set PCIREQ4 pin for output
(Initial value)
Rev.4.00 Oct. 10, 2008 Page 924 of 1122
REJ09B0370-0400