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PAC1941T-1E/4MX. Datasheet(PDF) 39 Page - Microchip Technology

Part # PAC1941T-1E/4MX.
Description  Single/Multi-Channel Power Monitor with Accumulator, 9V Full-Scale Range
PDF  96 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PAC1941T-1E/4MX. Datasheet(HTML) 39 Page - Microchip Technology

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 2021 Microchip Technology Inc.
DS20006543A-page 39
PAC194X
6.6.9
BLOCK READ – SMBUS VERSION
The PAC194X can also support the SMBus version of
Block Read. If the Byte Count bit is set, Block Read
will result in the device sending the Byte Count data
before the first data byte. This protocol is shown in
Table 6-11.
TABLE 6-10:
BLOCK READ PROTOCOL – I2C VERSION (DEFAULT)
START
Client
Address
WR
ACK
Register
Address
ACK
STAR
T
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
TABLE 6-11:
BLOCK READ PROTOCOL – SMBUS VERSION (MUST SET BYTE COUNT BIT)
START
Client
Address
WR
ACK
Register
Address
ACK
STAR
T
Client
Address
RD
ACK
Byte
Count
1 → 0 YYYY_YYY
0
0
XXh
0
1 → 0 YYYY_YYY
1
0
XXh = N
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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