CS49326 CIRRUS [Cirrus Logic], CS49326 Datasheet - Page 51

• Manufacturer Part Number: CS49326
• Description: Multi-Standard Audio Decoder Family
• Manufacturer: CIRRUS [Cirrus Logic]

DS339PP4
EXTMEM
EMAD7:0
EMAD7:0
EXTMEM
EMWR
EMWR
EMOE
EMOE
CS493XX
EMAD[7:0]
E X T M E M
Figure 31. External Memory Read (16-bit address)
E M W R
Figure 32. External Memory Write (16-bit address)
E M O E
3.3V
Figure 30. External Memory Interface
8
3.3V
3.3V
R1
R2
3.3V
R3
R4
MA 23:16
MA 23:16
D
8 BIT
'574
D F F
Only one of R1 and R2 shou ld be stuffed.
Only one of R3 and R4 shou ld be stuffed.
The state of EMOE and EMWR at the
rising edge of RESET will determine the
serial mode that the part comes up in
while using exter nal memory. Please see
section 2, Serial Communication for
more details.
Q
D
ADDR[7:0]
8 BIT
'574
D F F
Q
MA15:8
MA15:8
ADDR[14:8]
O E
C S
W E ( R A M O n l y )
ADDR[7:0]
ADDR[14:8]
CS49300 Family DSP
32K X 8
MA7:0
R O M / R A M
MA7:0
D A T A[7:0]
Data7:0
Data7:0
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