Sharp CD-DD4500 - Page 60

CD-DD4500
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Figure 60 BLOCK DIAGRAM OF IC
IRQ
SDin
SDOn
LRCK/BCK
RX
LOCK
/RST
MIMD
/MICS
/MILP
MIDIO
/MICK
MIACK
TXO FIn POn IOn ADn /CE,/OE,/WR LPFO DLON SCKI SCKO
ROM
4 kword x 3
RAM
128 word
40 bit
XRAM
4 kword
YRAM
4 kword
CROM
4 kword
ERAM
4 kword
DLL
3
17
8 8 4
DIT
AYAXMZMYMX
ALUMAC
X0,X1,X2 Y0,Y2,Y3
A1 A0 A2 A3
DIR
4
2
I bus
Y bus X bus
PROGRAM
EXECUTE
CONTROL
PROGRAM
INSTRUCTION
DECODER
INTERRUPT
CONTROL
AUDIO
I/F
TIMER
MICROCOMPUTER
I/F
REGISTER
ROUND OFF/LIMIT ROUND OFF/LIMIT
ADRESS OPERATION
X2
C POINTER
REGISTER
Y POINTER
REGISTER
X POINTER
REGISTER
BUS
SWITCH
TIMING
EXTERNAL
SRAM I/F
GENERAL-PURPOSE
OUTPUT PORT
FLAG
IC504 RH-iX0443AWZZ: Dolby Decoder (IX0443AW)