Digi NS9750 User Manual

Page 163

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M e m o r y C o n t r o l l e r

Figure 50: External memory 2 wait state write timing diagram

Timing parameter

Value

WAITRD

N/A

WAITOEN

N/A

WAITPAGE

N/A

WAITWR

2

WAITWEN

0

WAITTURN

N/A

Table 67: Static memory timing parameters

Cycle

Description

T0

AHB address provided to memory controller.

T0-T1

AHB transaction processing.

T1-T4

Arbitration of AHB memory ports.

T4-T5

Static memory transfer 0, address, chip select, and control signals
submitted to static memory.

Write data is read from the AHB memory port.

Write enable inactive.

T5-T6

Write enable taken active.

Write data submitted to static memory.

Table 68: External memory 2 wait state write

ADDR

DATAOUT

A

STCSOUT_n

D(A)

WEOUT_n

clk_out

T0

T1

T2

T3

T4

T5

T6

T7

T8

T9

T10

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