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