AK7750 Datasheet, PDF (6/77 Pages) Asahi Kasei Microsystems – Audio DSP with Built-in Hands-Free Phone Features

[ASAHI KASEI]
(3) DSP Block Diagram
[AK7750]
CP0,CP1
DP0,DP1
CRAM
1024w × 16bit
DRAM
256w × 24bit
CBUS(16bit)
DBUS(24bit)
DP0,DP1
DLRAM
OFRAM
1kw × 24bit or 4kw × 16bit
1kw × 24bit & 2kw × 16bit
48w × 12bit
CMP(comp/decomp)
MPX16
MPX24
Micon I/F
Control
Serial I/F
X
Y
Multiply
16bit × 24bit → 40bit
40bit
24bit
34bit
MUL DBUS
SHIFT
34bit
A
B
ALU
34bit
Overflow Margin: 4bit
DR0∼ 3
24bit
Over Flow Data
Generator
DEC
PRAM
768w × 32bit
PC
Stack : 1level
TMP 8 × 24bit
PTMP(LIFO) 6 × 24bit
2 × 24/20/16bit
2 × 24/20/16bit
2 × 24/20/16bit
2 × 24/20/16bit
2 × 24/20/16bit
SDIN5A or from ADC
SDIN4
SDIN3H or from ARM
SDIN2
SDIN1
2 × 24bit
2 × 24bit
2 × 24bit
SDOUT4A or to DAC
SDOUT3
SDOUT2
or to ARM
2 × 24bit
SDOUT1
Division
24÷2→24or16
Peak Detector
[MS0296-E-00]
6
2005/03