參數(shù)資料
型號(hào): MAX9273GTL/V+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 24/49頁(yè)
文件大小: 0K
描述: IC SERIALIZER 22BIT GMSL 40TQFN
標(biāo)準(zhǔn)包裝: 2,500
系列: *
MAX9273
22-Bit GMSL Serializer with Coax or
STP Cable Drive
30
Maxim Integrated
beyond storing the register address (Figure 28). Any
bytes received after the register address are data bytes.
The first data byte goes into the register selected by the
register address, and subsequent data bytes go into
subsequent registers (Figure 29). If multiple data bytes
are transmitted before a STOP condition, these bytes
are stored in subsequent registers because the register
addresses autoincrement.
Format for Reading
The serializer/deserializer are read using the internally
stored register address as an address pointer, the same
way the stored register address is used as an address
pointer for a write. The pointer autoincrements after each
data byte is read using the same rules as for a write. Thus,
a read is initiated by first configuring the register address
by performing a write (Figure 30). The master can now
read consecutive bytes from the device, with the first data
byte being read from the register address pointed by
the previously written register address. Once the master
sends a NACK, the device stops sending valid data.
I2C Communication with Remote-Side Devices
The serializer supports I2C communication with a periph-
eral on the remote side of the communication link using
SCL clock stretching. While multiple masters can reside
on either side of the communication link, arbitration is not
provided. The connected masters need to support SCL
clock stretching. The remote-side I2C bit-rate range must
be set according to the local-side I2C bit rate. Supported
remote-side bit rates can be found in Table 4. Set the
I2CMSTBT (register 0x0D) to set the remote I2C bit-rate. If
using a bit rate different than 400kbps, local- and remote-
side I2C setup and hold times should be adjusted by set-
ting the SLV_SH register settings on both sides.
I2C Address Translation
The serializer supports I2C address translation for up to
two device addresses. Use address translation to assign
unique device addresses to peripherals with limited
I2C addresses. Source addresses (address to translate
from) are stored in registers 0x09 and 0x0B. Destination
addresses (address to translate to) are stored in
registers 0x0A and 0x0C.
Figure 30. Format for I2C Read
Table 4. I2C Bit-Rate Ranges
LOCAL BIT RATE
REMOTE BIT-RATE RANGE
I2CMSTBT SETTING
f > 50kbps
Up to 1Mbps
Any
20kbps > f > 50kbps
Up to 400kbps
Up to 110
f < 20kbps
Up to 10kbps
000
S = START BIT
P = STOP BIT
A = ACK
N = NACK
D_ = DATA BIT
S
1
0
ADDRESS = 0x80
0 = WRITE
0
A
1 = READ
REPEATED START
0
REGISTER ADDRESS = 0x00
0
A
1
0
ADDRESS = 0x81
0
1
AD7
P
D6
D5
D4
REGISTER 0x00 READ DATA
D3
D2
D1
D0
N
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