Datasheet

DS90UB913Q, DS90UB914Q
SNLS420B –JULY 2012–REVISED APRIL 2013 www.ti.com
Table 1. DS90UB913Q Control Registers (continued)
Addr
Name Bits Field R/W Default Description
(Hex)
7-bit Deserializer Device ID Configures the I
2
C Slave ID
of the remote Deserializer. A value of 0 in this field
disables I
2
C access to the remote Deserializer. This field
Desializer Device is automatically configured by the Bidirectional Control
7:1 RW 0x00
ID Channel once RX Lock has been detected. Software may
overwrite this value, but should also assert the FREEZE
0x06 DES ID
DEVICE ID bit to prevent overwriting by the Bidirectional
Control Channel.
1: Prevents auto-loading of the Deserializer Device ID by
the bidirectional control channel. The ID will be frozen at
0 Freeze Device ID RW 0
the value written.
0: Update
7-bit Remote Deserializer Device Alias ID Configures the
decoder for detecting transactions designated for an I
2
C
Deserializer ALIAS Deserializer device. The transaction will be remapped to
7:1 RW 0
ID the address specified in the DES ID register.
0x07 DESAlias
A value of 0 in this field disables access to the remote
I
2
C Slave.
0 RSVD Reserved
7-bit Remote Slave Device ID Configures the physical I
2
C
address of the remote I
2
C Slave device attached to the
remote Deserializer. If an I
2
C transaction is addressed to
7:1 SLAVE ID RW 0x00 the Slave Alias ID, the transaction will be remapped to
0x08 SlaveID
this address before passing the transaction across the
Bidirectional Control Channel to the Deserializer. A value
of 0 in this field disables access to the remote I
2
C slave.
0 RSVD Reserved
7-bit Remote Slave Device Alias ID Configures the
decoder for detecting transactions designated for an I
2
C
Slave device attached to the remote Deserializer. The
7:1 SLAVE ALIAS ID RW 0x00
transaction will be remapped to the address specified in
0x09 SlaveAlias
the Slave ID register. A value of 0 in this field disables
access to the remote I
2
C Slave.
0 RSVD Reserved
Number of back-channel CRC errors during normal
0x0A CRC Errors 7:0 CRC Error Byte 0 R 0 operation
Least Significant byte
Number of back-channel CRC errors during normal
0x0B CRC Errors 7:0 CRC Error Byte 1 R 0 operation
Most Significant byte
Revision ID
7:5 Rev-ID R 0
0x00: Production
1: RX LOCKED
4 RX Lock Detect R 0
0: RX not LOCKED
BIST CRC Error 1: CRC errors in BIST mode
3 R 0
Status 0: No CRC errors in BIST mode
1: Valid PCLK detected
2 PCLK Detect R 0
0: Valid PCLK not detected
1: CRC error is detected during communication with
0x0C General Status
Deserializer.
1 DES Error R 0 This bit is cleared upon loss of link or assertion of CRC
ERROR RESET in register 0x04.
0: No effect
1: Cable link detected
0: Cable link not detected
This includes any of the following faults
0 LINK Detect R 0 — Cable Open
— '+' and '-' shorted
— Short to GND
— Short to battery
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