Table 21 - Precompensation Delays
PRECOMP
SELECT
PRECOMPENSATION DELAY
4
1
0
0
0
1
1
1
0
3
1
0
1
1
0
0
1
0
2
1
1
0
1
0
1
0
0
0.00 ns-DISABLED
41.67 ns
83.34 ns
125.00 ns
166.67 ns
208.33 ns
250.00 ns
Default (see Table 24)
Table 22 - Data Rates
DRIVE RATE
SELECT
DATA RATE
SELECT
(DSR)
DENSEL
(Note 1)
(CR0B)
DATA RATE
DRATE
DRT1
DRT0
SEL1
SEL0
MFM
FM
IDENT=1
IDENT=0
1
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
1
0
1Meg
500
---
1
1
0
0
0
0
1
1
1
0
0
1
1
0
1
0
250
150
125
300
250
0
0
0
0
1
1
1
1
1
0
0
1
1
0
1
0
1Meg
500
---
1
1
0
0
0
0
1
1
1
0
0
1
1
0
1
0
250
250
125
500
250
1
1
1
1
0
0
0
0
1
0
0
1
1
0
1
0
1Meg
500
---
250
---
1
1
0
0
0
0
1
1
1
0
0
1
1
0
1
0
2Meg
250
125
Note 1: This is for DENSEL in normal mode (see section CR05 on page 101). The DENSEL pin is set high after a
hardware reset and is unaffected by the DOR and the DSR resets.
SMSC DS – FDC37N769
Page 25 of 137
Rev. 02-16-07
DATASHEET
SMSC [ SMSC CORPORATION ]
