PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 41

• Manufacturer Part Number: PC87393VJG
• Description: IC, SUPER I/O DEVICE, TQFP-100
• Manufacturer: National Semiconductor

Specifications of PC87393VJG

• Data Rate: 2Mbps
• Supply Voltage Range: 3V to 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 100
• Operating Temperature Range: 0°C to +70°C
• Termination Type: SMD
• Transceiver Type: Interface
• Rohs Compliant: No

2.0 Device Architecture and Configuration
2.10.5 SuperI/O Configuration 4 Register (SIOCF4)
Location:
Type:
Bit
Name
Reset
7-6
4-3
2-1
Bit
5
0
1.
Bits
7 6
0 0
0 1
1 0
1 1
Pin 19 Function Select
0: GPIO35 (default)
1: SMI
Pin 73 Function Select
Bits
4 3
0 0
0 1
1 0
1 1
Pin 72 Function Select
Bits
2 1
0 0
0 1
1 0
1 1
Pin 6 Function Select
0: GPIO36 (default)
1: CLKRUN
Pin 5 Function Select
In the PC87391, this pin is pulled up after reset by an internal pull-up resistor. Software should set this field as
appropriate to enable the required Legacy function.
Index 24h
R/W
Function
GPIO34 (default when XCNF2-0 is x00)
XRD (default for all XCNF2-0 values except x00)
WDO
Reserved
Function
XIOWR
XCS1 (default)
MTR1 (signal output is inactive, 1, when PPM mode is enabled)
DRATE0
Function
GPIO25 (default when XCNF2-0 is x00)
XCS0 (default for all XCNF2-0 values except x00, 010 and 110)
XRDY (default when XCNF2-0 is 010 or 110)
DR1 (signal output is inactive, 1, when PPM mode is enabled)
7
Function
Select
Pin 5
Strap
1
1
1
6
1
1
Function
Pin 19
Select
5
0
Description
41
4
0
(Continued)
Function
Pin 73
Select
3
1
2
Function
Pin 72
Select
Strap
1
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Function
Select
Pin 6
0
0