HD6432670 Hitachi, HD6432670 Datasheet - Page 421

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Figures 8.31 to 8.34 show operation timing examples for various conditions.
ø pin
Bus cycle
CPU
operation
EDA bit
ø pin
Bus cycle
CPU
operation
CPU cycle CPU cycle
CPU cycle CPU cycle
External
External
1
space
space
Figure 8.31 Auto Request/Burst Mode/Normal Transfer Mode
Figure 8.32 Auto Request/Burst Mode/Normal Transfer Mode
External
External
space
space
(CPU Cycles/Dual Address Mode/BGUP = 0)
(CPU Cycles/Dual Address Mode/BGUP = 1)
External
External
EXDMA
EXDMA
space
space
read
read
EXDMA
EXDMA
write
write
1 bus cycle
CPU cycle
EXDMA
read
External
EXDMA
EXDMA
space
write
read
Repeated
EXDMA
write
Rev. 2.0, 04/02, page 375 of 906
1 bus cycle
CPU cycle
Last transfer cycle
EXDMA
read
EXDMA
EXDMA
write
read
CPU cycle
EXDMA
0
write