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3 external memory timing, External memory timing – Avago Technologies LSI8751D User Manual

Page 268

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7-32

Instruction Set of the I/O Processor

7.4.3 External Memory Timing

Figure 7.21

through

Figure 7.30

describe LSI53C875 External Memory

timing.

Figure 7.21 Read Cycle, Normal/Fast Memory (

64 Kbytes), Single Byte Access

CLK

MAD

(Addr driven by LSI53C875;

Data driven by memory)

MAS2/

(Driven by LSI53C875)

MAS1/

(Driven by LSI53C875)

MCE/

(Driven by LSI53C875)

MOE/

(Driven by LSI53C875)

MWE/

(Driven by LSI53C875)

1

2

3

4

5

6

7

8

9

High Order

Address

Middle Order

Address

Low Order

Address

MAS0/

(Driven by LSI53C875)

t

11

t

12

t

13

t

15f

t

14f

t

13f

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