PC87307VUL National Semiconductor, PC87307VUL Datasheet - Page 23
PC87307VUL
Manufacturer Part Number
PC87307VUL
Description
PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
Manufacturer
National Semiconductor
Datasheet
1.PC87307VUL.pdf
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In Table 1-2, unselected (XDB or alternate function) input signals are internally blocked high.
Pin
69
70
71
72
73
73
75
76
77
78
Bit 4 of SuperI/O Configuration
X-Bus Data Buffer (XDB)
Register 1 = 1
Strap Pins
BADDR1,0
XD6/SELCS
CFG3-0
SELCS
XDCS
XDRD
XD0
XD1
XD2
XD3
XD4
XD5
XD7
TABLE 1-2. Multiplexed X-Bus Data Buffer (XDB) Pins
TABLE 1-3. Pins with a Strap Function During Reset
Signal/Pin Connection and Description
134
136
138
144
146
148
Pin
77
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
23
IRSL2/XD6/SELCS/GPIO21
Bit 4 of SuperI/O Configuration 1
DTR1/BADDR0/BOUT1
DTR2/CFG1/BOUT2
RTS1/BADDR1
SOUT1/CFG0
SOUT2/CFG3
RTS2/CFG2
IRSL2/SELCS/GPIO21
Symbols
Alternate Function
Register = 0
IRSL1/ID1
GPIO24
GPIO25
GPIO26
GPIO27
RING
CS1
CS2
ID3
Output
Output
www.national.com
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
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