AS1163 datasheet(59/91 Pages) AMSOSRAM

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AS1163

Command and register description

Datasheet • PUBLIC • Document Feedback

DS001075 • v2-00 • 2025-Nov-21

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R/C(1)

SR(2)

W/R

Name

Function

Code

Broadcast/

multicast

Payload

sent # of

bit

Payload

answer # of

bit

SETTESTPW

Set

TESTPW

0x5F

0x7F

16 if SR

(1) R/C indicates a “command” when R/C bit is 0 or indicates a “Register access” when R/C bit is 1.

(2) SR requests the Status Register response. SR = 0 means no answer is required, SR=1 requires the device to reply with

Status information. Not allowed for broadcast and multicast messages.

7.12

Telegram commands

7.12.1

RESET (0x00)

Performs complete reset of one or all devices (RESET access takes time; wait 150µs after

sending this telegram before sending next.), goes into default state, delete error flags, all

registers are reset to their default, this includes the devices address (no longer in "addressed"

state) but excludes the OTP P2RAM.

Due to its startup behavior, the AS1163 comes out of RESET with the OV-FLAG set blocking

the AS1163 to execute a GOACTIVE telegram. It is advised to send a CLRERROR after INIT.

7.12.2

CLRERROR (0x01)

Clears all error flags, if an error still exists (for example short/open), the error flag is set again.

7.12.3

INITBIDIR (0x02)

This command initializes the chain of SAIDs in bidirectional mode.

If a device is not addressed: Device sets device address to received ADDRESS, transfers

same command with new address field ADDRESS+1 to next device. Last device sends

TEMPSTAT register with device address to controller.

This command will set the answer direction to controller to BIDIR mode.

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