Datasheet

AD5602/AD5612/AD5622 Data Sheet

Rev. C | Page 20 of 24

HIGH SPEED MODE

High speed mode communication commences after the master

addresses all devices connected to the bus with the Master

Code 00001XXX to indicate that a high speed mode transfer is

to begin. No device connected to the bus is permitted to

acknowledge the high speed master code, therefore, the code is

followed by a no acknowledge. The master must then issue a

repeated start followed by the device address. The selected

device then acknowledges its address. All devices continue to

operate in high speed mode until the master issues a stop

condition. When the stop condition is issued, the devices return

to standard/fast mode.

1 9

0 0 0 0 1 X X X 0 0 0 1 1 A1 A0

START BY

MASTER

ACK. BY

AD56x2

NACK. SR

SERIAL BUS ADDR

ESS BYTEHS-MODE MASTER CODE

HIGH-SPEED MODE

FAST M

ODE

SCL

SDA

R/W

05446-034

Figure 49. Placing the AD5602/AD5612/AD5622 into High Speed Mode