Datasheet
DS90UR916Q
www.ti.com
SNOSB46E –MARCH 2011–REVISED APRIL 2013
Table 10. DESERIALIZER — Serial Bus Control Registers
ADD ADD Default
PAGE Register Name Bit(s) R/W Function Description
(dec) (hex) (bin)
0 0 0 Des Config 1 7 R/W 0 LFMODE 0: 20 to 65 MHz Operation
1: 5 to 20 MHz Operation
6 R/W 0 OS_PCLK 0: Normal PCLK Output Slew
1: Increased PCLK Slew
5 R/W 0 OS_DATA 0: Normal DATA OUTPUT Slew
1: Increased Data Slew
4 R/W 0 RFB 0: Data strobed on Falling edge of PCLK
1: Data strobed on Rising edge of PCLK
3:2 R/W 00 CONFIG 00: Normal Mode, Control Signal Filter
Disabled
01: Normal Mode, Control Signal Filter
Enabled
10: Backwards Compatible (DS90UR241)
11: Backwards Compatible (DS90C241)
1 R/W 0 SLEEP Note – not the same function as
PowerDown (PDB)
0: normal mode
1: Sleep Mode – Register settings
retained.
0 R/W 0 REG Control 0: Configurations set from control pins /
STRAP pins
1: Configurations set from registers (except
I2C_ID)
0 1 1 Slave ID 7 R/W 0 0: Address from ID[X] Pin
1: Address from Register
6:0 R/W 1110000 ID[X] Serial Bus Device ID, Four IDs are:
7b '1110 001 (h'71)
7b '1110 010 (h'72)
7b '1110 011 (h'73)
7b '1110 110 (h'76)
All other addresses are Reserved.
0 2 2 Des Features 1 7 R/W 0 OP_LOW 0: set outputs state LOW (except LOCK)
Release/Set 1: release output LOW state, outputs
toggling normally
Note: This register only works during LOCK
= 1.
6 R/W 0 OSS_SEL Output Sleep State Select
0:PCLK/RGB[7:0]/HS/VS/DE = L, LOCK =
Normal, PASS = H
1:PCLK/RGB[7:0]/HS/VS/DE = Tri-State,
LOCK = Normal, PASS = H
5:4 R/W 00 MAP_SEL Special for Backwards Compatible Mode
with DS90UR241)
00: bit 4, 5 on LSB
01: LSB zero or one
10: LSB zero
11: LSB zero
3 R/W 0 OP_LOW strap 0: strap will determine whether OP_LOW
bypass feature is ON or OFF
1: Turns OFF OP_LOW feature
2:0 R/W 00 OSC_SEL 000: OFF
001: 50 MHz ±40%
010: 25 MHz ±40%
011: 16.7 MHz ±40%
100: 12.5 MHz ±40%
101: 10 MHz ±40%
110: 8.3 MHz ±40%
111: 6.3 MHz ±40%
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