Datasheet

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HS-Master Code R/W A Ctrl-Byte A MS-Byte A LS-Byte A/A P

”0” (write)

Data Transferred

(n* Words + Acknowledge)

Word = 12 Bit

S A Sr Slave Address

HS-Mode Continues

F/S-Mode HS-Mode F/S-Mode

Sr Slave Address

0 0 0 0 1 X X R/X

MSB LSB

HS-Mode Master Code:

0 0 L1 L0 X Sel1 Sel2 PD0

MSB LSB

Control Byte:

L1 = Load1 (Mode Select) Bit

L0 = Load0 (Mode Select) Bit

Sel1 = Buff Sel1 (Channel) Select Bit

Sel0 = Buff Sel0 (Channel) Select Bit

PD0 = Power Down Flag

X = Don’t Care

D11 D10 D9 D8 D7 D6 D5 D4

MSB LSB

MS-Byte:

D3 D2 D1 D0 X X X X

MSB LSB

LS-Byte:

D11 - D0 = Data Bits

DAC7574

SLAS375–JUNE 2003

DAC7574 as a Slave Receiver - High-Speed Mode

Figure 36 shows the high-speed mode master transmitter addressing a DAC7574 Slave Receiver with a 7-bit

address.

Figure 36. High-Speed Mode: Slave Receiver