ADMV8913SCCZ-EP-R2 datasheet(15/23 Pages) AD

15 / 23 page

Enhanced Product

ADMV8913-EP

Rev. 0 | Page 15 of 23

PROGRAMMING FLOW CHART

START

COMPLETE

SPI

PARALLEL

SET PS PIN LOW

SET SFL PIN LOW

SET SFL PIN HIGH

READ BACK

FAST_LATCH_STATE

YES

CS PULSE

YES

SET PS PIN HIGH

SPI FAST

LATCH MODE

SPI WRITE MODE

CONFIGURE

0x020

CONFIGURE

PICK NEW LUTy

LOCATION

(INCREMENT y)

SET HPF_y TO

DESIRED HPF VALUE

SET LPF_y TO

DESIRED LPF VALUE

WHERE Y = 0 TO 127

YES

WRITE

LUT

PARALLEL MODE

SYNCHRONOUS

ASYNCHRONOUS

SET CS PIN LOW

SET CS PIN HIGH

CONFIGURE PARALLEL

LOGIC INPUTS

HPF_B3 TO HPF_B0

LPF_B3 TO LPF_B0

YES

CONFIGURE PARALLEL

LOGIC INPUTS

HPF_B3 TO HPF_B0

LPF_B3 TO LPF_B0

SET HPF_WR

TO DESIRED HPF VALUE

SET LPF_WR

TO DESIRED LPF VALUE

SEQUENCE THROUGH

LUT ON EACH RISING

EDGE OF CS.

START LOCATION

...

STOP LOCATION

THEN ROLLOVER

SET THE DESIRED

FAST_LATCH_START

AND

FAST_LATCH_STOP

FAST_LATCH_DIRECTION

(INCREMENT/DECREMENT)

SET CS PIN HIGH

POWER UP

RESET STATE

MOST BIT FIELDS

ZERO

INTERFACE

SELECTION

MODE

SELECTION

TYPE OF

UPDATE?

WISH TO

MAKE ANOTHER

CHANGE?

WISH TO

MAKE ANOTHER

CHANGE?

WISH TO

MAKE A CHANGE

TO LUT?

ADJUST

ANOTHER

LUT?

WISH TO

KNOW CURRENT

POINTER

LOCATION?

WHICH LUT

TO ADJUST?

WISH TO

EXIT SFL

MODE?

READY TO

ENTER SFL

MODE?

LATCH THE

PARALLEL LOGIC

INPUTS TO

FILTER?

FILTER STATE WILL

UPDATE IMMEDIATELY

UPON CHANGE TO

PARALLEL LOGIC

INPUTS

YES

FAST_LATCH_STATE

WILL RESET ON THE

FIRST RISING EDGE OF

CS AFTER EXITING

SFL MODE

Figure 20. Programming Flowchart

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