TDA5235
Appendix
Register Description
Field
Bits
Type
Description
ISAT
1:0
w
I Value Saturation. The saturation of the I-Loop-Filter accumulator
will be set according to the
ISAT value. Remark that the internal phase resolution of the phase
detector is 1/16 bit.
00B saturation to 1/16 bit
01B saturation to 2/16 bit
10B saturation to 4/16 bit
11B saturation to 8/16 bit
Reset: 1H
Clock and Data Recovery RUNIN Configuration Register
A_CDRRI
Offset
048H
Reset Value
01H
Clock and Data Recovery RUNIN
Configuration Register
ꢀ
ꢅ
ꢆ
'5/,0(1
Z
ꢇ
ꢁ
8186('
581/(1
ꢂ
Z
Field
Bits
Type
Description
UNUSED
7:3
-
UNUSED
Reset: 00H
DRLIMEN
2
w
Enable data rate error acceptance limitation.
The limits are defined in CDRDRTHRP and CDRDRTHRN registers.
0B
1B
Disabled
Enabled
Reset: 0H
RUNLEN
1:0
w
RUNIN Length. The RUNIN length is equal to PLL-start-value
calculation time. This means
that the shorter RUNIN length decreases the data rate offset calculation
accuracy and symbol synchronization found signal generation stability.
Note that the RUNLEN have to be changed together with the TSI
configuration registers.
00B 8 chips
01B 7 chips
10B 6 chips
11B 5 chips
Reset: 1H
CDR DC Chip Tolerance Register
Data Sheet
214
V1.0, 2010-02-19
INFINEON [ Infineon ]
