Datasheet

47Maxim Integrated
Gigabit Multimedia Serial Link with Spread
Spectrum and Full-Duplex Control Channel
MAX9259/MAX9260
Table 17. MAX9260 Register Table (continued)
REGISTER
ADDRESS
BITS NAME VALUE FUNCTION
DEFAULT
VALUE
0x03
D[7:6] AUTOFM
00
Calibrate spread-modulation rate only once
after locking
00
01
Calibrate spread-modulation rate every 2ms
after locking
10
Calibrate spread-modulation rate every 16ms
after locking
11
Calibrate spread-modulation rate every
256ms after locking
D5 — 0 Reserved 0
D[4:0] SDIV
00000 Autocalibrate sawtooth divider
00000
XXXXX
Manual SDIV setting (see the Manual
Programming of the Spread-Spectrum Divider
section)
0x04
D7 LOCKED
0 LOCK output is low
0
(read only)
1 LOCK output is high
D6 OUTENB
0
Enable DOUT_, PCLKOUT, and I
2
S outputs.
A transition on ENABLE changes the state of
OUTENB.
0, 1
1
Disable DOUT_, PCLKOUT, and I
2
S outputs.
A transition on ENABLE changes the state of
OUTENB.
D5 PRBSEN
0 Disable PRBS test
0
1 Enable PRBS test
D4 SLEEP
0
Normal mode default value depends on CDS
and MS pin values at power-up)
0, 1
1
Activate sleep mode default value depends
on CDS and MS pin values at power-up)
D[3:2] INTTYPE
00 Base mode uses I
2
C peripheral interface
0001 Base mode uses UART peripheral interface
10, 11 Base mode peripheral interface disabled
D1 REVCCEN
0
Disable reverse control channel to serializer
(sending)
1
1
Enable reverse control channel to serializer
(sending)
D0 FWDCCEN
0
Disable forward control channel from
serializer (receiving)
1
1
Enable forward control channel from
serializer (receiving)