Texas Instruments TMS320C3x - Manual (Page 283)

External Memory Interface Timing
9-17 TMS320C30 and TMS320C31 External-Memory Interface
Figure 9–6. Read-Read-Write for (M)STRB = 0
H3
H1
(M)STRB
(X)R/W
(X)A
(X)D
(X)RDY
Read Read Write data
Note: (x) RDY is sampled low on rising edge of H1. Data is read next falling edge of H1.
Note: Back-to-Back Read Operations
(M)STRB remains low during back-to-back read operations.