SC18IM700IPW PHILIPS [NXP Semiconductors], SC18IM700IPW Datasheet - Page 5

• Manufacturer Part Number: SC18IM700IPW
• Description: Master I-2C - bus controller with UART interface
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
SC18IM700_1
Product data sheet
7.1.2 Read N byte from slave device
7.1.3 Write to 18IM internal register
The host issues the read command by sending an S character followed by an I
slave device address, and the total number of bytes to be read from the addressed
I
command, the SC18IM700 will access the I
bytes from the addressed I
Note that the second byte sent is the I
bit (R) of this byte must be set to 1 to indicate this is an I
The host issues the internal register write command by sending a W character followed by
the register and data pair. Each register to be written must be followed by the data byte.
The frame is then terminated with a P character.
Remark: Write and read from the internal 18IM register is processed immediately as soon
as the intended register is determined by 18IM.
2
Fig 3. Write N bytes to slave device
Fig 4. Read N byte from slave device
Fig 5. Write to 18IM internal register
C-bus slave. The frame is then terminated with a P character. Once the host issues this
W CHAR.
host sends
S CHAR.
REGISTER 0
Rev. 01 — 28 February 2006
SLAVE ADR.
host sends
18IM responds
S CHAR.
+ W
2
DATA 0
C-bus slave, and then return the data to the host.
SLAVE ADR.
DATA 0
OF BYTES
NUMBER
2
+ R
C-bus device slave address. The least significant
Master I
DATA N
2
C-bus slave device, get the correct number of
DATA 0
OF BYTES
NUMBER
REGISTER N
2
C-bus controller with UART interface
2
C-bus write command.
P CHAR.
002aac049
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
DATA N
DATA N
SC18IM700
P CHAR.
002aac048
P CHAR.
002aac050
2
C-bus
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