Texas Instruments TMS320C3x - Manual (Page 303)

External Memory Interface Timing
9-37 TMS320C30 and TMS320C31 External-Memory Interface
9.6.3 Hold Cycles
Figure 9–26 illustrates the timing for HOLD and HOLDA. HOLD is an external
asynchronous input. There is a minimum of one cycle delay from the time when
the processor recognizes HOLD = 0 until HOLDA = 0. When HOLDA = 0, the
address, data buses, and associated strobes are placed in a high-impedance
state. All accesses occurring over an interface are completed before a hold is
acknowledged.
Figure 9–26. HOLD and HOLDA Timing
H3
H1
HOLD
HOLDA
STRB
R/W
A
D Write data
Bus
inactive