Datasheet

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AD9510 Data Sheet

Rev. B | Page 42 of 56

Table 22. Serial Control Port, 16-Bit Instruction Word, MSB First

MSB

LSB

I15 I14 I13 I12 I11 I10 I9 I8 I7 I6 I5 I4 I3 I2 I1 I0

W1 W0 A12 = 0 A11 = 0 A10 = 0 A9 = 0 A8 = 0 A7 = 0 A6 A5 A4 A3 A2 A1 A0

Figure 46. Serial Control Port Write—MSB First, 16-Bit Instruction, 2 Bytes Data

Figure 47. Serial Control Port Read—MSB First, 16-Bit Instruction, 4 Bytes Data

Figure 48. Serial Control Port Write−MSB First, 16-Bit Instruction, Timing Measurements

Figure 49. Timing Diagram for Serial Control Port Register Read

Figure 50. Serial Control Port Write—LSB First, 16-Bit Instruction, 2 Bytes Data

05046-019

CSB

SCLK

DON'T CARE

SDIO A12W0W1R/W A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D7

D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0

DON'T CARE

16-BIT INSTRUCTION HEADER REGISTER (N) DATA REGISTER (N – 1) DATA

05046-020

CSB

SCLK

SDIO

SDO

16-BIT INSTRUCTION HEADER REGISTER (N

– 1) DATA

– 2) DATA

3) DATA

A12W0W1

R/W

A11

A10

DON'T CARE

DON'T

CARE

D7 D6

D4 D3

05046-021

DON'T CARE

W1 W0 A12 A11 A10 A9 A8 A7 A6 A5 D4 D3 D2 D1 D0

DON'T CARE

R/W

CLK

CSB

SCLK

SDIO

05046-022

DATA BIT N– 1DATA BIT N

CSB

SCLK

SDIO

SDO

05046-023

CSB

SCLK

DON'T CARE

16-BIT INSTRUCTION HEADER REGISTER (N) DATA REGISTER (N + 1) DATA

SDIO

DON'T CARE

A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 D1D0R/WW1W0

D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7