DAC8574 Datasheet, PDF (21/40 Pages) Texas Instruments – QUAD, 16-BIT, LOW-POWER, VOLTAGE OUTPUT, I2C INTERFACE DIGITAL-TO-ANALOG CONVERTER

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DAC8574
SLAS377A – JANUARY 2003 – REVISED JUNE 2003
DAC8574 as a Slave Receiver - High-Speed Mode
Figure 52 shows the high-speed mode master transmitter addressing a DAC8574 Slave Receiver with a 7-bit
address.
F/S-Mode
HS-Mode
S HS-Master Code A Sr Slave Address R/W A Ctrl-Byte A MS-Byte A LS-Byte A/A P
F/S-Mode
”0” (write)
HS-Mode Master Code:
MSB
LSB
0 0 0 0 1 X X R/X
MS-Byte:
MSB
LSB
D15 D14 D13 D12 D11 D10 D9 D8
LS-Byte:
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
Data Transferred
(n* Words + Acknowledge)
Word = 16 Bit
HS-Mode Continues
Sr Slave Address
Control Byte:
MSB
A3 A2 L1 L0
LSB
X Sel1 Sel2 PD0
A3 = Extended Address Bit
A2 = Extended Address Bit
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
D15 - D0 = Data Bits
X = Don’t Care
Figure 52. High-Speed Mode: Slave Receiver
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