Datasheet

�� Maxim Integrated Products 49

MAX9257A/MAX9258A

Fully Programmable Serializer/Deserializer

with UART/I

C Control Channel

MAX9258A Register Table (continued)

ADDRESS BITS DEFAULT NAME DESCRIPTION

7 0 INTMODE Interface mode 0 = UART (default), 1 = I

6 0 INTEN Interface enable 0 = disabled (default), 1 = enabled

5 0 FAST

Fast UART transceiver

0 = bit rate = DC to 4.25Mbps (default), 1 = bit rate = 4.25Mbps to 10 Mbps

4:2 000 CTO

Timer to come back from bypass mode (in bit time)

000 = never come back (default) 100 = 64

001 = 16 101 = 80

010 = 32 110 = 96

011 = 48 111 = 112

1:0 00 BITRATE

Control channel bit rate range in base mode

00 = 95kbps to 400kbps (default)

01 = 400kbps to 1000kbps

10 = 1000kbps to 4250kbps

11 = 1000kbps to 4250kbps

8 7:0 00010000 PATHRLO

Threshold for number of video parity errors (8 LSBs)

If the number of errors exceeds this value, ERR pin is asserted.

9 7:0 00000000 PATHRHI

Threshold for number of video parity errors (8 MSBs)

If the number of errors exceeds this value, ERR pin is asserted.

10 7:0 (RO) PAERRLO Number of video parity errors (8 LSBs)

11 7:0 (RO) PAERRHI Number of video parity errors (8 MSBs)

12 7:0 (RO) PRBSERR

PRBS test number of bit errors

Automatically reset when PRBS test is disabled

0xFF indicates 255 or more errors

7:5 (RO) Reserved

4 (RO) DESPERR Parity error during communication with deserializer

3 (RO) DESFERR Frame error during communication with deserializer

2 (RO) SERPERR Parity error during communication with serializer

1 (RO) SERFERR Frame error during communication with serializer

0 (RO) I

CERR Error during communication with camera in I

C mode

14 7:0 (RO) Reserved