HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 172

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

6.6.2
As with the basic bus interface, program wait insertion or pin wait insertion using the :$,7 pin
can be used in the initial cycle (full access) of the burst ROM interface. For details, see section
6.5.4, Wait Control. Wait states cannot be inserted in a burst cycle.
Rev. 2.0, 08/02, page 132 of 788
Figure 6.14 Access Timing Example in Burst ROM Space (AST = BRSTS1 = 1)
Figure 6.15 Access Timing Example in Burst ROM Space (AST = BRSTS1 = 0)
Wait Control
Address bus
(IOSE = 0)
Data bus
/
Address bus
Ø
(IOSE = 0)
Data bus
/
T
1
Ø
Full access
T
2
T
1
Full access
Read data
Read data
T
3
T
2
T
1
Only lower
Read data Read data
Only lower address changes
Read data
T
Burst access
1
address changes
T
Burst access
2
T
1
T
1
Read data
T
2