ADIS16COM1SLASHPCBZ datasheet(13/37 Pages) AD

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Preliminary Technical Data

ADIS16000/ADIS16229

Rev. PrA | Page 13 of 37

Reserved

N/A

0x66

N/A

Reserved

LOT_ID1

Read only

Yes

0x68

N/A

Lot identification 1

LOT_ID2

Read only

Yes

0x6A

N/A

Lot identification 2

Reserved

N/A

0x6C

N/A

Reserved

N/A

0x6E

N/A

Reserved

X_ANULL

Read only

Yes

0x70

0x0000

Automatic null value, x-axis

Y_ANULL

Read only

Yes

0x72

0x0000

Automatic null value, y-axis

UPDT_FLAG

Read/write

Yes

0x74

1 All registers in pages 1, 2, 3, 4, 5 and 6 will read 0x0000, prior to connecting with the ADIS16229

NETWORK MANAGEMENT

Once they have an appropriate supply voltage across their VDD

and GND pins, both ADIS16000 and ADIS16229 will self-initialize

and prepare themselves for connecting. After completing this

process, the ADIS16229 will start sending “connection requests” to

any available ADIS16000 devices that are within range. The system

microcontroller manages the ADIS16000’s response to these

requests, using the CMD_DATA (See Table 11) and GLOB_CMD

registers (See Table 12), which are both in Page 0 of the

ADIS16000. Adding an ADIS16229 network requires two steps:

(1) write the node number (between 0 and 6) to the CMD_DATA

page 0). After this second step, the connection process can take up

to 3 minutes after writing this code. Removing a sensor from the

network uses a similar two-step process: (1) write the sensor node

number to the CMD_DATA register and then (2) Set

GLOB_CMD[8] = 1 (DIN = 0x9301, page 0).

Set GLOB_CMD[1] = 1 (DIN = 0x9202) to initial an update of all

of the registers, except those associated with the spectral alarms. Set

GLOB_CMD[12] = 1 (DIN = 0x9310) to update all of the alarm

registers, after configuring them. Separating this function will help

manage the flash memory endurance.

Table 11. CMD_DATA,

Page 0, Low-Byte Address = 0x14, Read/Write

Bits

Description (Default = 0x0000)

[15:4]

Not used

[3:0]

Sensor node for GLOB_CMD[1] and GLOB_CMD[0]

commands. Range = 000 (0) to 110 (6)

Table 12. GLOB_CMD

Page 0, Low-Byte Address = 0x12, Write Only

Bits

Description

Execution Time

[15:8]

Not used

Remove sensor node in

CMD_DATA from the network

Software reset

Save registers to flash memory

Flash test, compare sum of flash

memory with factory value

Clear DIAG_STAT register

Restore factory register settings,

including capture buffer and

alarm registers

Self-test, result in DIAG_STAT[5]

Update sensor node in

CMD_DATA register, in one of the

manual modes

Add sensor node in CMD_DATA to

the network

After connecting with an ADIS16229, the ADIS16000 will

automatically copy the contents from its own NETWORK_ID[7:0]

location (see Table 13) to the SENS_ID[7:0] location in the

ADIS16229’s page. (see Table 14).

Table 13. NETWORK_ID

Page 0, Low-Byte Address = 0x02, Read/Write

Bits

Description (Default = 0x1234)

[15:0]

Network identification number

The SENS_ID register will contain the value 0x0000 when not

connected to a network. When connected to the network, as node

1, it will contain 0xAD34.

Table 14. SENS_ID

Page 1-6, Low-Byte Address = 0x02, Read Only

Bits

Description (Default = 0xAAAA)

[15:0]

Sensor identification

Receiver Signal Strength

The RSSI_G (see Table 15) and RSSI_S (see Table 16) provide

tools for tuning the transmission power control at each location.

In order to maintain effective communication, keep the

transmission power high enough to maintain at least -94dBm in

these registers.

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