BUF20800 Datasheet, PDF (10/27 Pages) Burr-Brown (TI) – 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels

BUF20800
SBOS329D − JUNE 2005 − REVISED OCTOBER 2006
To Read Multiple DACs:
1. Send a START condition on the bus.
2. Send the device address and read/write bit = LOW.
The BUF20800 will acknowledge this byte.
3. Send either the DAC_1 address byte to start at the first
DAC, or send the address byte for whichever DAC will
be the first in the sequence of DACs to be read. The
BUF20800 will begin with this DAC and step through
subsequent DACs in sequential order.
4. Send a START or STOP/START condition on the bus.
5. Send correct device address and read/write
bit = HIGH. The BUF20800 will acknowledge this
byte.
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6. Receive two bytes of data. They are for the specified
DAC. The first received byte is the most significant
byte (bits D15−D8, only bits D9 and D8 have
meaning); the next byte is the least significant byte
(bits D7−D0).
7. Acknowledge after receiving each byte of data except
for the last byte. The acknowledge bit of the last byte
should be HIGH to end the read operation.
8. When all desired DACs have been read, send a STOP
or repeated START condition on the bus.
Communication may be terminated by sending a
premature STOP or START condition on the bus, or by not
sending the acknowledge.
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