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LPC47M172 Datasheet(PDF) 13 Page - SMSC Corporation

Part # LPC47M172
Description  Advanced I/O Controller with Motherboard GLUE Logic
PDF  226 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

LPC47M172 Datasheet(HTML) 13 Page - SMSC Corporation

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Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
SMSC/Non-SMSC Register Sets (Rev. 01-11-07)
Page 13
SMSC LPC47M172
DATASHEET
Note:
Pin 117 is used to select the mode of the logical device numbering. This pin affects the LD_NUM bit in the
TEST 7 register (configuration register 0x29), which is used to select logical device numbering in the
LPC47M172. See Table 6.1 - Super I/O Block Logical Device Number and Addresses. The pin functions
as follows:
The pin has an internal pull-down resistor that selects the non-standard SMSC (Intel Compatible) mode. To
select this mode, the pin should be left unconnected. This configuration clears the LD_NUM bit to ‘0’ and the
associated functionality corresponds to the existing functionality in the part when the LD_NUM bit=0.
Connecting this pin to VTR will select the standard SMSC mode of the logical device numbering. This
configuration sets the LD_NUM bit to ‘1’ and the associated functionality corresponds to the existing functionality
in the part when the LD_NUM bit=1.



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