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Chapter 2: Custom single-purpose processors - page 21 / 29

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Embedded Systems Design: A Unified Hardware/Software Introduction, (c) 2000 Vahid/Givargis

RT-level custom single-purpose processor design (cont’)

WaitFirst4

RecFirst4Start

data_lo_ld=1

WaitSecond4

rdy_in=1

rdy_in=0

RecFirst4End

rdy_in=1

RecSecond4Start

data_hi_ld=1

RecSecond4End

rdy_in=1

rdy_in=0

rdy_in=1

rdy_in=0

Send8Start

data_out_ld=1

rdy_out=1

Send8End

rdy_out=0

(a) Controller

rdy_in

rdy_out

data_lo

data_hi

data_in(4)

(b) Datapath

data_out

clk

data_out

Bridge

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