pc87317vul National Semiconductor Corporation, pc87317vul Datasheet - Page 25

• Manufacturer Part Number: pc87317vul
• Description: Pc87317vul/pc97317vul Superi/o Plug And Play Compatible With Acpi Compliant Controller/extender
• Manufacturer: National Semiconductor Corporation

Pin
69
70
71
72
73
73
75
76
77
78
1. Unselected (XDB or alternate function) input signals are internally blocked high.
141
142
143
146
147
148
Pin
154
155
156
159
160
Pin
68
Bit 4 of SuperI/O Configuration
X-Bus Data Buffer (XDB)
Bit 3 of SuperI/O Configuration
TABLE 1-4. APC/Power Management or GPIO/Chip Select Pin Designation
APC, Power Management
Register 1 = 1
XD6/SELCS
Register 1 = 1
XDCS
XDRD
XD0
XD1
XD2
XD3
XD4
XD5
XD7
SOUT2
UART2
TABLE 1-2. Multiplexed X-Bus Data Buffer (XDB) Pins
DCD2
DSR2
CTS2
RTS2
PME2
PME1
SIN2
WDO
RING
POR
LED
TABLE 1-3. UART2/GPIO Port 3 Pin Designation
Signal/Pin Connection and Description
1
Input
Input
Output
Output
Output
Output
Output
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
25
General Purpose I/O, Chip Select
Bit 4 of SuperI/O Configuration 1
Bit 3 of SuperI/O Configuration
General Purpose I/O port 3
GPIO21/IRSL2/SELCS
CS1/CSOUT-NSC-Test
Alternate Function
Register 1 = 0
Register = 0
IRSL1/ID1
GPIO30
GPIO31
GPIO32
GPIO34
GPIO35
GPIO36
GPIO15
GPIO16
GPIO17
GPIO22
GPIO23
GPIO24
GPIO25
GPIO26
GPIO27
CS0
RING
CS2
ID3
a
Output
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Output
Output
Output
Input
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I/O
I/O
I/O
I/O
I/O
I/O