Digi NS9750 - Manual (Page 156)

S t a t i c m e m o r y c o n t r o l l e r
1 3 2 N S 9 7 5 0 H a r d w a r e R e f e r e n c e
Figure 46: External memory 2 wait states fixed length burst read timing diagram
Timing parameter Value
WAITRD 2
WAITOEN 0
WAITPAGE N/A
WAITWR N/A
WAITWEN N/A
WAITTURN N/A
Table 59: SRAM timing diagrams
Cycle Description
T0 AHB address provided to memory controller.
T0-T1 AHB transaction processing.
T1-T4 Arbitration of memory ports.
T4-T5 Static memory address, chip select, and control signals submitted to
static memory.
T5-T6 Read wait state 1.
T6-T7 Read wait state 2.
Table 60: External memory 2 wait states fixed length burst read
ADDR
DATAIN
A+8
SCTSOUT_n
COEOUT_n
A A+4
D(A)
D(A+4)
clk_out
T0 T1 T2 T3 T4 T5 T6 T7 T12 T10 T11 T8 T9