HD6432621 Hitachi, HD6432621 Datasheet - Page 213

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Full access
Burst access
T
T
T
T
1
2
1
1
ø
Only lower address changed
Address bus
AS
RD
Data bus
Read data
Read data Read data
Figure 7-14 (b) Example of Burst ROM Access Timing (When AST0 = BRSTS1 = 0)
7.5.3
Wait Control
As with the basic bus interface, either program wait insertion or pin wait insertion using the WAIT
pin can be used in the initial cycle (full access) of the burst ROM interface. See section 7.4.5, Wait
Control.
Wait states cannot be inserted in a burst cycle.
169