ISL5216_14 Datasheet, PDF (18/65 Pages) Intersil Corporation – Four-Channel Programmable Digital Downconverter

Filter Sequencer
ISL5216
NEW DATA, FIR #
RESET
SYNC
INSTRUCTION RAM,
SEQUENCER
FIR# - WRITE DESTINATION
FIR# - COMPUTE
ALIAS
MASK
READ
POINTER
REG
FILE
WRITE
POINTER
REG
FILE
THRESHOLD
DECREMENT 1
DECREMENT 2
WAIT
COUNTER
LOOP
COUNTER
LOOP
COUNTER
PRELOAD
DATA ADDRESS STEP SIZE
COMPUTE TO COMPUTE
START ADDRESS
FIR TYPE
NUMBER OF OUTPUTS
TAPS/OUTPUT
READS/TAP
INSTR/TAP
COMPUTE
COUNTERS
RAM ADDR BLOCK START
RAM ADDR BLOCK SIZE
RAM ADDR STEP SIZE 1
FIR
RAM ADDR STEP SIZE 2
PARAMETER _{RAM ADDR BLOCK TO BLOCK STEP}
RAM
FIR OUTPUT DESTINATION
DATA
PATH
DATA PATH
CONTROL _{CONTROL SIGNALS}
ROM
RAM
ADDR
GEN
A
DATA RAM A
READ/WRITE
ADDRESS
RAM ADDR INITIAL OFFSET
RAM ADDR OFFSET STEP
RAM ADDR BLOCK TO BLOCK STEP
RAM
ADDR
GEN
B
DATA RAM B
READ ADDRESS
ENABLE
OFFSET
RESAMPLER
NCO
COEF ADDR BLOCK START
COEF ADDR BLOCK SIZE
COEF ADDR STEP SIZE PER TAP
ADDR STEP SIZE PER OUTPUT
ADDRESS OFFSET
COEF
ADDR
GEN
COEFFICIENT
READ ADDRESS
18
FN6013.3
July 13, 2007