GS6151 datasheet(39/77 Pages) SEMTECH

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GS6151

Final Data Sheet

Rev.4

PDS-060389

August 2015

39 of 77

Semtech

Proprietary & Confidential

www.semtech.com

The steps required for the application host processor to write to the Configuration and

Status Registers via the GSPI, are as follows:

1. Set Command Word for write access (R/W = 0) to the local registers 0h-80h; set Auto

Increment; set the Unit Address field in the Command Word to match the

configured DEVICE_UNIT_ADDRESS which will be zero. Write the Command Word.

2. Write the Data Word to be written to the first register.

3. Write the Data Word to be written to the next register in Auto Increment mode, etc.

Read access is the same as the above with the exception of step 1, where the Command

Word is set for read access (R/W = 1).

Note: The UNIT ADDRESS field of the Command Word must always match

DEVICE_UNIT_ADDRESS for an access to be accepted by the device. Changing

DEVICE_UNIT_ADDRESS to a value other than 0 is only required if multiple devices are

connected to a single chip select (in Loop-Through or Bus-Through configuration.)

GS6151 Datasheet(PDF) 39 Page - Semtech Corporation