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UCS81003 датащи(PDF) 99 Page - Microchip Technology

номер детали UCS81003
подробное описание детали  Automotive USB Port Power Controller with Charger Emulation
PDF  108 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

UCS81003 датащи(HTML) 99 Page - Microchip Technology

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 2014 Microchip Technology Inc.
DS20005334A-page 99
UCS81003
11.2.4
I2C PROTOCOLS
The UCS81003 supports I2C Block Read and Block
Write. The protocols listed below use the convention in
Table 11-3.
11.2.4.1
Block Write
The Block Write is used to write multiple data bytes to
a group of contiguous registers as shown in Table 11-8.
11.2.4.2
Block Read
The Block Read is used to read multiple data bytes from
a group of contiguous registers as shown in Table 11-9.
Note:
When using the Block Write protocol, the
internal address pointer will be automatically
incremented after every data byte is
received. It will wrap from FFh to 00h.
TABLE 11-8:
BLOCK WRITE PROTOCOL
START
Client
Address
WR
ACK
Register
Address
ACK
Register
Data
ACK
1 ->0
YYYY_YYY
0
0
XXh
0
XXh
0
Register
Data
ACK
Register
Data
ACK
. . .
Register
Data
ACK
STOP
XXh
0
XXh
0
. . .
XXh
0
0 -> 1
Note:
When using the Block Read protocol, the
internal address pointer will be automatically
incremented after every data byte is
received. It will wrap from FFh to 00h.
TABLE 11-9:
BLOCK READ PROTOCOL
START
Client
Address
WR
ACK
Register
Address
ACK
START
Client
Address
RD
ACK
Register
Data
1->0
YYYY_YYY
0
0
XXh
0
1 ->0
YYYY_YYY
1
0
XXh
ACK
Register
Data
ACK
Register
Data
ACK
Register
Data
ACK
. . .
Register
Data
NACK
STOP
0
XXh
0
XXh
0
XXh
0
. . .
XXh
1
0 -> 1



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