MAX9257/MAX9258
Tables 1 and 2 show the default power-up values for
the MAX9257/MAX9258 registers. Tables 3 and 4 show
the input and output supply references.
Parallel-Word Width
The parallel-word width is made up of the video data
bits, HYSNC, and VSYNC. The video data bits are pro-
grammable from 8 to 16 depending on the pixel clock,
serial-data rate, and parity. Table 16 shows the parallel-
word width.
Serial-Word Length
The serial-word length is made up of the parallel-word
width, encoding bits, and parity bits. Tables 5–9 show
the serial video format and serial-word lengths without
parity. Tables 10–13 show with parity bits included.
LVDS Serial Data
Serial LVDS data is transmitted least significant bit (LSB)
to most significant bit (MSB) as shown in Tables 5
through 13. The ECU at startup can program the parallel
word width, serial frequency range, parity, spread-spec-
trum, and pixel clock frequency range
(
see the
MAX9257
Register Table
and the
MAX9258 Register Table)
.
22 ______________________________________________________________________________________
Fully Programmable Serializer/Deserializer
with UART/I
2
C Control Channel
REGISTER NAME
REGISTER
ADDRESS (hex)
POWER-UP VALUE
(hex)
POWER-UP DEFAULT SETTINGS
REG8 0x08 0x10
PATHRLO = 0001 0000
parity threshold = 16
REG9 0x09 0x00
PATHRHI = 0000 0000,
parity threshold = 16
REG10 0x0A 0x00 Parity errors video (8 LSBs) = read only
REG11 0x0B 0x00 Parity errors video (8 MSBs) = read only
REG12 0x0C 0x00 PRBS bit errors = read only
REG13 0x0D 0x00
Reserved = 000
Parity error, communication with MAX9258 = read only
Frame error, communication with MAX9258 = read only
Parity error, communication with MAX9257 = read only
Frame error, communication with MAX9257 = read only
I
2
C error, communication with peripheral = read only
Table 2. MAX9258 Power-Up Default Register Map (continued)
INPUTS/OUTPUTS SUPPLY
PCLK_IN, HSYNC_IN, VSYNC_IN,
DIN[0:7], DIN[8:15]/GPIO[0:7],
GPIO8, GPIO9
V
CCIO
SDO+, SDO- V
CCLVDS
SCL/TX, SDA/RX, REM V
CC
Table 3. MAX9257 I/O Supply
INPUTS/OUTPUTS SUPPLY
All inputs and outputs V
CCOUT
SDI+, SDI- V
CCLVDS
Table 4. MAX9258 I/O Supply
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