USB2502 SMSC Corporation, USB2502 Datasheet - Page 37
USB2502
Manufacturer Part Number
USB2502
Description
2-Port USB 2.0 Hub Controller
Manufacturer
SMSC Corporation
Datasheet
1.USB2502.pdf
(44 pages)
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2-Port USB 2.0 Hub Controller
Datasheet
Chapter 6 XNOR Test
SMSC USB2502
XNOR continuity tests all signal pins on the Hub (every pin except for NC, XTAL1/CLKIN, XTAL2,
ATEST/REG_EN, RBIAS, TEST, Power, and Ground). This functionality is enabled by driving TEST
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
37
Revision 2.1 (12-06-06)