AK7770EQ Datasheet, PDF (4/22 Pages) Asahi Kasei Microsystems – Audio DSP with Multi-Channel Audio CODEC

[AK7770]
CP0,CP1
DP0,DP1
CRAM
1536w × 16bit
DRAM
1536w × 24bit
CBUS(16bit)
DBUS(24bit)
DLP0,DLP1
DLRAM
14kw × 20bit
OFREG
64w X 14bit
MPX16
MPX20
X
Y
Multiply
16bit×20bit→ 36bit
36bit
24bit
40bit
MUL DBUS
SHIFT
40bit
A
B
ALU
40bit
Overflow Margin: 4bit
40bit
DR0 ^~ 3
40bit
Over Flow Data
Generator
Division 20÷20→20 _{Peak Detector}
Micon I/F
Control
Serial I/F
DEC
PRAM
1536w × 36bit
PC
Stack : 5level(max)
TMP 8×24bit
PTMP(LIFO) 6×24bit
2×24bit
2×24bit
2×24bit
2×24bit
DIN4
DIN3
DIN2
DIN1
2×24/20/16bit
2×24/20/16bit
2×24bit
2×24bit
2×24bit
DOUT5
DOUT4
DOUT3
DOUT2
DOUT1
Figure 2. AK7770 DSP Block Diagram
MS0699-E-01-PB
-4-
2008/06