CS492305-CL 查看數據表（PDF） - Cirrus Logic

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CS492305-CL

Multi-Channel Digital Audio Decoders

Cirrus Logic 

CS4923/4/5/6/7/8/9

3.3V

8

EMAD[7:0]

CS4923/4/5/6/7/8/9

EMOE

EXTMEM

EMWR

DQ

ADDR[7:0]

ADDR[7:0] DATA[7:0]

3.3V

8 BIT

ADDR[15:8]

DQ

ADDR[15:8]

'574

8 BIT

DFF

'574

DFF

OE 64K X 8

CS ROM

3.3V

R1

R2

3.3V

R3

R4

Only one of R1 and R2 should be stuffed.

Only one of R3 and R4 should 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 external memory. Please see

section 2, Serial Communication for

more details.

Figure 21. External Memory Interface

EXTMEM

EMOE

EMAD7:0

42

MA15:8

MA7:0

Data7:0

Figure 22. Run-Time Memory Access

DS262F2

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