DS90UB913Q_13 Datasheet, PDF (27/63 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – DS90UB913Q/DS90UB914Q 10-100MHz 10/12- Bit DC-Balanced FPD-Link III Serializer and Deserializer with Bidirectional Control Channel

DS90UB913Q, DS90UB914Q
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Addr
(Hex)
Name
0x14
BIST Control
0x15–0
x1D
0x1E
BCC Watchdog
Control
0x1F-
0x29
0x2A
0x2B-
0x34
CRC Errors
0x35
PLL Clock
Overwrite
SNLS420B – JULY 2012 – REVISED APRIL 2013
Table 1. DS90UB913Q Control Registers (continued)
Bits Field
7:3 RSVD
2:1 Clock Source
0
BIST Enable
7:1
BCC Watchdog
Timer
0
BCC Watchdog
Timer Disable
7:0
BIST Mode CRC
Errors Count
7:4 RSVD
3
PIN_LOCK to
External Oscillator
2
PIN_LOCK2Oscilla
tor
1
LOCK to External
Oscillator
0 RSVD
R/W Default Description
Reserved
Allows choosing different OSC clock frequencies for
forward channel frame.
OSC Clock Frequency in Functional Mode when OSC
RW
0x0 mode is selected or when the selected clock source is
not present e.g. missing PCLK/ External Oscillator. See
Table 3 for oscillator clock frequencies when PCLK/
External Clock is missing.
BIST Control:
RW
0
1: Enable BIST mode
0: Disable BIST mode
RESERVED
The watchdog timer allows termination of a control
channel transaction if it fails to complete within a
RW
0x7F programmed amount of time. This field sets the
Bidirectional Control Channel Watchdog Timeout value in
units of 2ms. This field should not be set to 0.
Disable Bidirectional Control Channel Watchdog Timer
RW
0
1: Disables BCC Watchdog Timer operation
0: Enables BCC Watchdog Timer operation
RESERVED
R
0
Number of CRC Errors in the back channel when in BIST
mode
RESERVED
Reserved
Status of mode select pin
1: Indicates External Oscillator mode is selected by
RW
0
mode-resistor
0: External Oscillator mode is not selected by mode-
resistor
Status of mode select pin
RW
0
1: Indicates PCLK mode is selected by mode-resistor
0: PCLK mode not selected by mode-resistor
Affects only when 0x03[1]=1 (OV_CLK2PLL) and
RW
0
0x35[0]=0.
1: Routes GPO3 directly to PLL
0: Allows PLL to lock to PCLK"
Reserved
Addr
(Hex)
0x00
Name
I²C Device ID
Table 2. DS90UB914Q Control Registers
Bits
Field
R/W
Default
Description
7:1 DEVICE ID
RW
0
Deserializer ID
Select
RW
0x60'h
0
7-bit address of Deserializer;
0x60h
0: De-Serializer Device ID is set using address
coming from CAD
1: Register I²C Device ID overrides ID[x]
Copyright © 2012–2013, Texas Instruments Incorporated
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