Datasheet

MCP4728
DS22187E-page 32 © 2010 Microchip Technology Inc.
5.4.3 GENERAL CALL SOFTWARE
UPDATE
If the second byte is “00001000” (08h), the device
updates all DAC analog outputs (V
OUT
) at the same
time.
FIGURE 5-5: General Call Software Update.
1st Byte
Note 1
1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
ACK (MCP4728)
Stop
Start
2nd Byte
(Command Type = General Call Software Update)
(General Call Command)
Clock Pulse (CLK Line)
Data (SDA Line)
Note 1: At this falling edge of the last ACK clock bit, V
OUT
A, V
OUT
B, V
OUT
C, V
OUT
D are updated.