USB2504 SMSC Corporation, USB2504 Datasheet - Page 40
USB2504
Manufacturer Part Number
USB2504
Description
Integrated USB 2.0 Compatible 4-Port Hub
Manufacturer
SMSC Corporation
Datasheet
1.USB2504.pdf
(46 pages)
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Chapter 7 XNOR Test
Revision 2.1 (12-06-06)
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.
DATASHEET
40
Integrated USB 2.0 Compatible 4-Port Hub
SMSC USB2504/USB2504A
Datasheet