Datasheet

TUSB1210
www.ti.com SLLSE09F –NOVEMBER 2009–REVISED AUGUST 2012
9.1.29 VENDOR_SPECIFIC2
ADDRESS OFFSET 0x80
PHYSICAL ADDRESS 0x80 INSTANCE USB_SCUSB
DESCRIPTION Eye diagram programmability and DP/DM swap control .
TYPE RW
WRITE LATENCY
7 6 5 4 3 2 1 0
IHSTX
SPARE
ZHSDRV
DATAPOLARITY
BITS FIELD NAME DESCRIPTION TYPE RESET
7 SPARE RW 0
6 DATAPOLARITY Control data polarity on dp/dm RW 1
5:04 ZHSDRV High speed output impedance configuration for eye diagram tuning : RW 0x0
00 45.455 Ω
01 43.779 Ω
10 42.793 Ω
11 42.411 Ω
3:00 IHSTX High speed output drive strength configuration for eye diagram tuning : RW 0x1
0000 17.928 mA
0001 18.117 mA
0010 18.306 mA
0011 18.495 mA
0100 18.683 mA
0101 18.872 mA
0110 19.061 mA
0111 19.249 mA
1000 19.438 mA
1001 19.627 mA
1010 19.816 mA
1011 20.004 mA
1100 20.193 mA
1101 20.382 mA
1110 20.570 mA
1111 20.759 mA
IHSTX[0] is also the AC BOOST enable
IHSTX[0] = 0 à AC BOOST is disabled
IHSTX[0] = 1 à AC BOOST is enabled
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