CDB49300 Cirrus Logic Inc, CDB49300 Datasheet - Page 42

• Manufacturer Part Number: CDB49300
• Description: Audio Modules & Development Tools Eval Bd Mult-Std Aud Decdr. DSP
• Manufacturer: Cirrus Logic Inc

Specifications of CDB49300

• Description/function: Audio A/D
• Operating Supply Voltage: 5 V
• Product: Audio Modules
• For Use With/related Products: CS49300
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

42
EMAD7:0
EXTMEM
EMOE
CS4923/4/5/6/7/8/9
EMAD[7:0]
E X T M E M
E M W R
E M O E
3.3V
Figure 21. External Memory Interface
Figure 22. Run-Time Memory Access
8
3.3V
3.3V
R1
R2
3.3V
R3
R4
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 d etails.
Q
D
8 BIT
'574
D F F
MA15:8
ADDR[7:0]
Q
ADDR[15:8]
O E
C S
ADDR[7:0]
ADDR[15:8]
MA7:0
CS4923/4/5/6/7/8/9
64K X 8
R O M
D A T A[7:0]
Data7:0
DS262F2