Renesas SH7781 - Manual (Page 1612)

32. Electrical Characteristics
Rev.1.00 Jan. 10, 2008 Page 1582 of 1658
REJ09B0261-0100
D31 to D0
(Read)
(SA: IO ← memory)
Legend:
IO: DACK
device
SA: Single-address DMA transfer
DA: Dual-address DMA transfer
Note: DACK is configured as active-high.
A25 to A5
A4 to A0
Tw T1 Twe TB2 TB1 Twb Twbe TB1 TB2 Twb Twbe Twb T2 TB2 Twbe TB1
t
AD
t
AD
t
AD
t
RDH
t
RDS
t
RDH
t
RDS
t
DACD
t
DACD t
DACD
t
BSD
t
BSD
t
BSD
t
BSD
t
RSD
t
RSD
t
RWD
t
CSD
t
RWD
t
CSD
t
DACD
t
DACD
t
RSD
t
RDYH
t
RDYS
t
RDYH
t
RDYS
t
RDYH
t
RDYS
t
RDYH
t
RDYS
CLKOUT
DACKn
(DA)
DACKn
CSn
RD/ WR
RD
BS
RDY
Figure 32.16 Burst ROM Bus Cycle (One Internal Wait Cycle + One External Wait Cycle)