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PC87393 Datasheet(PDF) 43 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza PC87393
Descripción Electrónicos  100-Pin LPC SuperI/O Devices for Portable Applications
PDF  148 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87393 Datasheet(HTML) 43 Page - National Semiconductor (TI)

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2.0 Device Architecture and Configuration (Continued)
43
www.national.com
2.10.7
SuperI/O Configuration 6 Register (SIOCF6)
Write access to this register can be inhibited by setting bit 7. Activation of each logical device (bits 0-4) is also affected by
bit 0 of the logical device Activate register, index 30h and bit 0 of the SIOCF1 register.
Location:
Index 26h
Type:
R/W
2.10.8
SuperI/O Revision ID Register (SRID)
This register contains the ID number of the specific family member (Chip ID) and the chip revision number (Chip Rev). The
Chip Rev field identity number the chip revision.
Location:
Index 27h
Type:
RO
Bit
76543210
Name
SIOCF6
Software
Lock
General-Purpose
Scratch
Reserved
Serial Port 1
Disable
Serial Port 2
Disable
Parallel Port
Disable
FDC
Disable
Reset
00000000
Bit
Description
7
SIOCF6 Software Lock. When this bit is set to 1 by software, it can be cleared only by hardware reset.
0: Write access to bits 0-6 of this register enabled (default)
1: Bits 6-0 of this register are RO
6-5
General-Purpose Scratch
4
Reserved
3
Serial Port 1 Disable
0: Enabled (default)
1: Disabled
2
Serial Port 2 Disable
0: Enabled (default)
1: Disabled
1
Parallel Port Disable
0: Enabled (default)
1: Disabled
0
FDC Disable
0: Enabled (default)
1: Disabled
Bit
76543210
Name
Chip ID
Chip Rev
Reset
0
0
0
XXXXX
Bit
Description
7-5
Chip ID.
4-0
Chip Rev. These bits identify the device revision.



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