Datasheet

TUSB1210
www.ti.com SLLSE09F –NOVEMBER 2009–REVISED AUGUST 2012
6 USB Connectivity
6.1 Timing Parameter Definitions
The timing parameter symbols used in the timing requirement and switching characteristic tables are
created in accordance with JEDEC Standard 100. To shorten the symbols, some pin names and other
related terminologies have been abbreviated as shown in Table 6-1.
Table 6-1. Timing Parameter Definitions
LOWERCASE SUBSCRIPTS
SYMBOL PARAMETER
C Cycle time (period)
D Delay time
Dis Disable time
En Enable time
H Hold time
Su Setup time
START Start bit
T Transition time
V Valid time
W Pulse duration (width)
X Unknown, changing, or don't care level
H High
L Low
V Valid
IV Invalid
AE Active edge
FE First edge
LE Last edge
Z High impedance
6.2 Interface Target Frequencies
Table Table 6-2 assumes testing over the recommended operating conditions.
Table 6-2. TUSB1210 Interface Target Frequencies
IO INTERFACE DESIGNATION TARGET
INTERFACE FREQUENCY
1.5 V
USB Universal High speed 480 Mbits/s
serial bus
Full speed 12 Mbits/s
Low speed 1.5 Mbits/s
6.3 USB Transceiver
The TUSB1210 device includes a universal serial bus (USB) on-the-go (OTG) transceiver that supports
USB 480 Mb/s high-speed (HS), 12 Mb/s full-speed (FS), and USB 1.5 Mb/s low-speed (LS) through a 12-
pin UTMI+ low pin interface (ULPI).
Copyright © 2009–2012, Texas Instruments Incorporated USB Connectivity 17
Submit Documentation Feedback
Product Folder Links: TUSB1210