ADRF6821 datasheet(38/61 Pages) AD

38 / 61 page

ADRF6821

Data Sheet

Rev. A | Page 38 of 61

Address: 0x0000, Reset: 0x00, Name: ADI_SPI_CONFIG

SOFTRESET_

SOFTRESET

LSB_FIRST_

LSB_FIRST

ENDIAN_

ENDIAN

SDOACTIVE_

SDOACTIVE

[ 7 ] S O FT RES ET _ ( R/W )

[ 0 ] S O FT RES ET ( R/W )

[ 6 ] LS B_FIRS T _ ( R/W )

[ 1 ] LS B_FIRS T ( R/W )

[ 5 ] ENDIAN_ ( R/W )

[ 2 ] ENDIAN ( R/W )

[ 4 ] S D O ACT IV E_ ( R/W )

[ 3 ] S D O ACT IV E ( R/W )

Table 19. Bit Descriptions for ADI_SPI_CONFIG

Bits

Bit Name

Settings

Description

Reset

Access

SOFTRESET_

0x0

R/W

LSB_FIRST_

0x0

R/W

ENDIAN_

0x0

R/W

SDOACTIVE_

0x0

R/W

SDOACTIVE

0x0

R/W

ENDIAN

0x0

R/W

LSB_FIRST

0x0

R/W

SOFTRESET

0x0

R/W

Address: 0x0001, Reset: 0x00, Name: SPI_CONFIG_B

Single Instruction

Master Slave Transfer

CSB Stall

Soft Reset

Master Slave RB

[7] SINGLE_INSTRUCTION (R/W)

[0] MASTER_SLAVE_TRANSFER (R/W)

[6] CSB_STALL (R/W)

[2:1] SOFT_RESET (R/W)

[5] MASTER_SLAVE_RB (R/W)

[4:3] RESERVED

Table 20. Bit Descriptions for SPI_CONFIG_B

Bits

Bit Name

Settings

Description

Reset

Access

SINGLE_INSTRUCTION

Single Instruction

0x0

R/W

CSB_STALL

CSB Stall

0x0

R/W

MASTER_SLAVE_RB

Master Slave Readback (RB)

0x0

R/W

[4:3]

RESERVED

Reserved

0x0

R/W

[2:1]

SOFT_RESET

Soft Reset

0x0

R/W

MASTER_SLAVE_TRANSFER

Master Slave Transfer

0x0

R/W

Address: 0x0003, Reset: 0x01, Name: CHIPTYPE

Chip Type, Read Only

[7:0] CHIPTYPE (R)

Table 21. Bit Descriptions for CHIPTYPE

Bits

Bit Name

Settings

Description

Reset

Access

[7:0]

CHIPTYPE

Chip Type, Read Only

0x1

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