Spi Register Map - Analog Devices AD9776 Instruction Manual

SPI REGISTER MAP

Table 10.
Register
Name Address Bit 7
Comm 0x00 00 SDIO
Bidirectional
Digital 0x01 01 Filter Interpolation Factor <1:0>
Control
0x02 02 Data Format
Sync 0x03 03 Data Clock Delay Mode <1:0>
Control
0x04 04
0x05 05
0x06 06
0x07 07 Sync Receiver
Enable
PLL Control 0x08 08
0x09 09 PLL Enable
Misc 0x0A 10 PLL Control Voltage Range <2:0> (Read Only)
Control
I DAC 0x0B 11
Control
0x0C 12 I DAC Sleep
Register
Aux DAC1 0x0D 13
Control
Register
0x0E 14 Auxiliary DAC1
Q DAC 0x0F 15
Control
Register
0x10 16 Q DAC Sleep
Aux DAC2 0x11 17
Control
Register
0x12 18 Auxiliary DAC2
0x13 19 to
to 24
0x18
Interrupt 0x19 25
Register
0x1A 26 to
to 31
0x1F
Bit 6 Bit 5
LSB/MSB First Software
Reset
Dual/Interleaved Real Mode
Data Bus Mode
Data Clock Divide Ratio <1:0>
Data Clock Delay <3:0>
Sync Out Delay <3:0>
Sync Input Delay <3:0>
Sync Driver Sync
Enable Triggering
Edge
PLL Band Select <5:0>
PLL VCO Divider Ratio <1:0>
I DAC Power
Down
Auxiliary DAC1 Auxiliary DAC1
Sign Current Power-Down
Direction
Q DAC Power-
Down
Auxiliary DAC2 Auxiliary DAC2
Sign Current Power-Down
Direction
Sync Delay IRQ
Bit 4 Bit 3
Power-Down Auto Power-
Mode Down Enable
Filter Modulation Mode <3:0>
Data Clock Inverse Sinc
Delay Enable Enable
Output Sync Pulse Divide <2:0>
Input Sync Pulse Frequency Ratio <2:0> Sync Input
Input Sync Pulse Timing Error Tolerance <3:0>
DAC Clock Offset <4:0>
PLL Loop Divide Ratio <1:0> PLL Bias Setting <2:0>
PLL Loop Bandwidth Adjustment <4:0>
I DAC Gain Adjustment<7:0>
Auxiliary DAC1 Data <7:0>
Q DAC Gain Adjustment <7;0>
Auxiliary DAC2 Data <7:0>
Reserved
Reserved
Rev. 0 | Page 25 of 56
AD9776/AD9778/AD9779
Bit 2 Bit 1 Bit 0
PLL Lock
Indicator
(Read Only)
Zero
Stuffing
Enable
DATACLK TxEnable Q First
Invert Invert
Reserved
Sync Out
Delay <4>
Delay <4>
PLL VCO AGC Gain
<1:0>
I DAC Gain Adjustment
<9:8>
Auxiliary DAC1 Data
<9:8>
Q DAC Gain Adjustment
<9:8>
Auxiliary DAC2 Data
<9:8>
Sync Delay Internal
IRQ Enable Sync
Loopback
Def.
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0xCF
0x37
0x38
0xF9
0x01
0x00
0x00
0xF9
0x01
0x00
0x00
0x00