Datasheet

© 2011-2012 Microchip Technology Inc. DS22272C-page 55
MCP4706/4716/4726
FIGURE 6-6: Read Command Format for 8-bit DAC (MCP4706).
Device Addressing Vol. Data bits (8 bits) (3rd byte)
Note 1:
Note 1
The 2nd-5th bytes can be repeated after the 5th byte by continued clocking before issuing Stop bit.
Vol.
2: ACK bit generated by MCP47X6.
b07 b06 b05 b04 b03 b02 b01 b00
MCP4706 D07 D06 D05 D04 D03 D02 D01 D00
SDA
SCL
A2 A1 A01100 1 0 PD1 PD0 G 0 b07 b06 b05 b04 b03 b02 b01 b00 0
Vol. Configuration
Data bits (8 bits) (3rd and 5th bytes)
Start bit ACK bit
(2)
Read/Write bit (Read)
Stop bit
S
AR/W A A
Status
ACK bit
(3)
ACK bit
(3)
Legend: D07:D00 = 8-bit data for MCP4706 device
0
VREF1 VREF0
A/N P
ACK/NACK bit
(4)
RDY POR
NV Data bits (8 bits) (5th byte)
0 b07 b06 b05 b04 b03 b02 b01 b00 0/1
A
ACK bit
(3)
PD1 PD0 G1
VREF1 VREF0
RDY POR
Vol. NV Configuration
Status
bits
bits
bits
bits
3: ACK bit generated by I
2
C™ master.
4: ACK/NACK bit generated by I
2
C™ master.