Rainbow-electronics MAX9258 Bedienungsanleitung PDF herunterladen (Seite 45)

MAX9257/MAX9258

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Fully Programmable Serializer/Deserializer

with UART/I

C Control Channel

ADDRESS BITS DEFAULT NAME DESCRIPTION

Control channel end timeout: (ETO) times out if ECU does not use control channel for this amount of time after it has

already used at least once.

7:4 1010 ETODIV

Control channel end timeout divider

Pixel clock is first divided by:

0000 = 16 1000 = 256

0001 = 16 1001 = 512

0010 = 16 1010 = 1024 (default)

0011 = 16 1011 = 2048

0100 = 16 1100 = 4096

0101 = 32 1101 = 8192

0110 = 64 1110 = 16,384

0111 = 128 1111 = 32,768

3:0 0000 ETOCNT

Control channel end timeout counter

Divided pixel clock is used to count up to (ETOCNT + 1)

7 0 VEDGE

VSYNC active edge at ECU interface

0 = falling (default), 1 = rising

6 0 HEDGE

HSYNC active edge at ECU interface

0 = falling (default), 1 = rising

5 1 CKEDGE

PCLK active edge at ECU interface

0 = falling, 1 = rising (default)

4:1 0000 Reserved (set to 0000)

0 0 PRBSEN

PRBS test enable

0 = disabled (default), 1 = enabled

7:1 1111100 DEVICEID 7-bit address of MAX9258

0 0 Reserved (set to 0)

7:1 1111111 EF End frame to close control channel

0 1 Reserved (set to 1)

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

MAX9258 Register Table (continued)

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 53 54

MAX9257/MAX9258 1
C Control Channel 1

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