Datasheet

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MAX9257A/MAX9258A
Fully Programmable Serializer/Deserializer
with UART/I
2
C Control Channel
MAX9257A Register Table (continued)
ADDRESS BITS DEFAULT NAME DESCRIPTION
9
7:4 0000 PRBSLEN
PRBS test number of words
1111 = continuous else = 2
(PRBSLEN + 21)
3 0 GPIO9DIR GPIO 9 direction 0 = input (default), 1 = output
2 0 GPIO8DIR GPIO 8 direction 0 = input (default), 1 = output
1 0 GPIO9* General purpose input output 9
0 0 GPIO8* General purpose input output 8
10
7 0 GPIO7DIR GPIO 7 direction 0 = input (default), 1 = output
6 0 GPIO6DIR GPIO 6 direction 0 = input (default), 1 = output
5 0 GPIO5DIR GPIO 5 direction 0 = input (default), 1 = output
4 0 GPIO4DIR GPIO 4 direction 0 = input (default), 1 = output
3 0 GPIO3DIR GPIO 3 direction 0 = input (default), 1 = output
2 0 GPIO2DIR GPIO 2 direction 0 = input (default), 1 = output
1 0 GPIO1DIR GPIO 1 direction 0 = input (default), 1 = output
0 0 GPIO0DIR GPIO 0 direction 0 = input (default), 1 = output
11
7 0 GPIO7* General purpose input output 7
6 0 GPIO6* General purpose input output 6
5 0 GPIO5* General purpose input output 5
4 0 GPIO4* General purpose input output 4
3 0 GPIO3* General purpose input output 3
2 0 GPIO2* General purpose input output 2
1 0 GPIO1* General purpose input output 1
0 0 GPIO0* General purpose input output 0
12
7:5 111 PREEMP
LVDS driver preemphasis setting
000 = 20% 111 = off (default)
001 = 40% 101 = 20%
010 = 60% 110 = 20%
011 = 80%
100 = 100%
4:0 00000 Reserved (set to 00000)
13
7:2 000000 Reserved (set to 000000)
1:0 00 I
2
CFILT
I
2
C glitch filter setting
00 = set according to programmed bit rate (default)
100ns at (95kbps to 400kbps) bit rate
50ns at (400kbps to 1000kbps) bit rate
10ns at (1000kbps to 4250kbps) bit rate
01 = 10ns, 10 = 50ns, 11 = 100ns
14
7:1 (RO) Reserved
0 (RO) LOCKED PLL locked to pixel clock
15 7:0 (RO) Reserved