TC9446FG Datasheet, PDF (3/41 Pages) Toshiba Semiconductor – Audio Digital Processor for Decode of Dolby Digital (AC-3), MPEG2 Audio

Block Diagram
TC9446FG
Program
Instruction
control
Program
ROM
4 k word × 3
RAM
128 word
40 bit
Instruction
Decoder
XRAM
4 k word
YRAM
4 k word
CROM
4 k word
ERAM
4 k word
X bus
Y bus
Address operator
×2
X pointer
register
Y pointer
register
C pointer
register
Timing
DLL
Bus switch
IRQ
2
SDIn
4
SDOn
LRCK/BCK
RX
LOCK
RST
MIMD
MICS
MILP
MIDIO
MICK
MIACK
Interrupt
Audio
Interface
DIR
Timer
MCU interface
I bus
Register
X0, X1, X2
Y0, Y2, Y3
MX
MY
MZ
MAC
A1
A0
AX
AY
ALU
A2
A3
Round/Limiter
Round/Limiter
3
External SRAM 17
interface
8
General output 8
port
4
Flag
DIT
SCKO
SCKI
DLON
LPFO
CE , OE , WR
ADn
IOn
POn
FIn
TXO
3
2005-09-28