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High-Speed USB Host Subsystem
Table 22-116. ULPI_DEBUG_i
Address Offset
0x0000 0015 + (0x100 * i)
Index
i = 0 to 2
Physical Address
0x4806 2815 + (0x100 * i)
Instance
USBTLL
Description
Indicates the current value of various signals useful for debugging.
Type
R
7
6
5
4
3
2
1
0
RESERVED
LINESTATE
Bits
Field Name
Description
Type
Reset
7:2
RESERVED
Reserved
R
0x00
1:0
LINESTATE
Current state of the USB line: D+ (bit 0) and D– (bit 1).
R
0x0
0x0: SE0 (LS/FS), Squelch (HS/Chirp)
0x1: LS: 'K' State, FS: 'J' State, HS: !Squelch,
Chirp: !Squelch & HS_Differential_Receiver_Output
0x2: LS: 'J' State, FS: 'K' State, HS: Invalid,
Chirp: !Squelch & !HS_Differential_Receiver_Output
0x3: SE1 (LS/FS), Invalid (HS/Chirp)
Table 22-117. Register Call Summary for Register ULPI_DEBUG_i
High-Speed USB Host Subsystem
•
High-Speed USB Host Subsystem Register Summary
Table 22-118. ULPI_SCRATCH_REGISTER_i
Address Offset
0x0000 0016 + (0x100 * i)
Index
i = 0 to 2
Physical Address
0x4806 2816 + (0x100 * i)
Instance
USBTLL
Description
Register byte for register access testing purposes. Value has no functional effect on PHY. Read/Write
address.
Type
RW
7
6
5
4
3
2
1
0
SCRATCH
Bits
Field Name
Description
Type
Reset
7:0
SCRATCH
Scratch data.
RW
0x00
Table 22-119. Register Call Summary for Register ULPI_SCRATCH_REGISTER_i
High-Speed USB Host Subsystem
•
High-Speed USB Host Subsystem Register Summary
3313
SWPU177N – December 2009 – Revised November 2010
High-Speed USB Host Subsystem and High-Speed USB OTG Controller
Copyright © 2009–2010, Texas Instruments Incorporated