DS92LX2121_15 Datasheet, PDF (20/44 Pages) Texas Instruments – 10 - 50 MHz DC-Balanced Channel Link III Bi-Directional Control Serializer and Deserializer

DS92LX2121, DS92LX2122
SNLS330J – MAY 2010 – REVISED JANUARY 2014
www.ti.com
Addr
(Hex)
6
7
8
9
A
B
C
D
E
F
10
11
12
13
14
Name
Reserved
SCL Prescale
Remote NACK
Remote NACK
SER ID
ID[0] Index
ID[1] Index
ID[2] Index
ID[3] Index
ID[4] Index
ID[5] Index
ID[6] Index
ID[7] Index
ID[0] Match
ID[1] Match
ID[2] Match
ID[3] Match
ID[4] Match
Table 2. DS92LX2122 Control Registers (continued)
Bits
Field
R/W
7 RESERVED
6:4 SCL_PRESCALE
RW
3
REM_NACK_TIM
ER
RW
2:0
REM_NACK_TIME
R
RW
7:1 SER DEV ID
RW
0 RESERVED
7:1 ID[0] INDEX
RW
0 RESERVED
7:1 ID[1] INDEX
RW
0 RESERVED
7:1 ID[2] INDEX
RW
0 RESERVED
7:1 ID[3] INDEX
RW
0 RESERVED
7:1 ID[4] INDEX
RW
0 RESERVED
7:1 ID[5] INDEX
RW
0 RESERVED
7:1 ID[6] INDEX
RW
0 RESERVED
7:1 ID[7] INDEX
RW
0 RESERVED
7:1 ID[0] MATCH
RW
0 RESERVED
7:1 ID[1] MATCH
RW
0 RESERVED
7:1 ID[2] MATCH
RW
0 RESERVED
7:1 ID[3] MATCH
RW
0 RESERVED
7:1 ID[4] MATCH
RW
0 RESERVED
Default
Description
0
1
111'b
0x58h
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Reserved.
Prescales the SCL clock line when reading data byte
from a slave device (MODE = 0)
000 : ~100 kHz SCL (default)
001 : ~125 kHz SCL
101 : ~11 kHz SCL
110 : ~33 kHz SCL
111 : ~50 kHz SCL
Other values are NOT supported.
Remote NACK Timer Enable In slave mode (MODE = 1)
if bit is set the I2C core will automatically timeout when
no acknowledge condition was detected.
1: Enable
0: Disable
Remote NACK Timeout
000: 2.0 ms
001: 5.2 ms
010: 8.6 ms
011: 11.8 ms
100: 14.4 ms
101: 18.4 ms
110: 21.6 ms
111: 25.0 ms
Serializer Device ID = 0x58
(1011_000X) default
Reserved
Target slave Device ID slv_id1 [7:1]
Reserved.
Target slave Device ID slv_id1 [7:1]
Reserved.
Target slave Device ID slv_id2 [7:1]
Reserved.
Target slave Device ID slv_id3 [7:1]
Reserved.
Target slave Device ID slv_id4 [7:1]
Reserved.
Target slave Device ID slv_id5 [7:1]
Reserved.
Target slave Device ID slv_id6 [7:1]
Reserved.
Target slave Device ID slv_id7 [7:1]
Reserved.
Alias to match Device ID slv_id0 [7:1]
Reserved.
Alias to match Device ID slv_id1 [7:1]
Reserved.
Alias to match Device ID slv_id2 [7:1]
Reserved.
Alias to match Device ID slv_id3 [7:1]
Reserved.
Alias to match Device ID slv_id4 [7:1]
Reserved.
20
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