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USB2503A-HZH View Datasheet(PDF) - SMSC -> Microchip

Part Name
Description
MFG CO.
USB2503A-HZH
SMSC
SMSC -> Microchip SMSC
'USB2503A-HZH' PDF : 43 Pages View PDF
Integrated USB 2.0 Compatible 3-Port Hub
Datasheet
Chapter 6 XNOR Test
XNOR continuity tests all signal pins on the Hub (every pin except for NC, XTAL1/CLKIN, XTAL2,
ATEST/REG_EN, RBIAS, TEST1, Power, and Ground). This functionality is enabled by driving TEST1
and CFG_SEL[1] high, driving SCLK low and transition RESET_N from low to high. The output from
the XNOR chain is driven to GR2 . For each pin tested for continuity GR2 should toggle.
SMSC USB2503/USB2503A
37
DATASHEET
Revision 2.3 (08-27-07)
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