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High-Speed USB Host Subsystem
Bits
Field Name
Description
Type
Reset
31
CONTROL
Control/status of the ULPI register access
RW
0
0x0: ULPI access done
0x1: Start ULPI access
30:28
RESERVED
Reserved
R
0x0
27:24
PORTSEL
RW
0x0
0x1: Port 1 selected for register access
0x2: Port 2 selected for register access
0x3: Port 3 selected for register access
23:22
OPSEL
RW
0x0
0x2: Register access is Write
0x3: Register access is Read
21:16
REGADD
ULPI direct register address, for any value different than
RW
0x00
0x2F.
0x2F: Triggers an extended address
15:8
EXTREGADD
Address for extended register accesses. Don't care for
RW
0x00
direct accesses.
7:0
WRDATA
Read/Write data of register access
RW
0x00
Table 22-249. Register Call Summary for Register INSNREG05_ULPI
High-Speed USB Host Subsystem
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High-Speed USB Host Subsystem Register Summary
3359
SWPU177N – December 2009 – Revised November 2010
High-Speed USB Host Subsystem and High-Speed USB OTG Controller
Copyright © 2009–2010, Texas Instruments Incorporated