r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 473
r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
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φ pin
Bus cycle
CPU
operation
EDACK
ETEND
φ pin
Bus cycle
CPU
operation
CPU cycle CPU cycle
CPU cycle CPU cycle
External
External
space
space
Figure 8.32 Auto Request/Burst Mode/Normal Transfer Mode
Figure 8.33 Auto Request/Burst Mode/Normal Transfer Mode
External
External
space
space
(CPU Cycles/Single Address Mode/BGUP = 1)
(CPU Cycles/Dual Address Mode/BGUP = 1)
single cycle
External
External
EXDMA
EXDMA
space
space
read
single cycle
EXDMA
EXDMA
write
1 bus cycle
1 bus cycle
CPU cycle
CPU cycle
single cycle
External
External
EXDMA
EXDMA
space
space
read
Rev. 1.00 Sep. 19, 2008 Page 443 of 1342
Section 8 EXDMA Controller (EXDMAC)
single cycle
EXDMA
EXDMA
write
1 bus cycle
CPU cycle
CPU cycle
Last transfer cycle
single cycle
REJ09B0467-0100
EXDMA
EXDMA
read
CPU cycle
External
EXDMA
space
write
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