r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1621

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

(CSnWCR.IW = 0000, CSnWCR.RDS = 001, CSnWCR.WTS = 001, CSnWCR.RDH = 001,
Figure 32.25 Memory Byte Control SRAM Bus Cycle: Basic Read Cycle
CLKOUT
A25 to A0
CSn
RD/WR
RD
D31 to D0
(Read)
WEn
BS
RDY
DACKn
(SA: IO ← memory)
DACKn
(DA)
Legend:
IO:
SA:
DA:
Note: DACK is configured as active-high.
DACK device
Single-address DMA transfer
Dual-address DMA transfer
CSnWCR.WTH = 001)
t
t
t
BSD
WED1
DACD
t
TS1
t
t
t
t
DACD
AD
CSD
RWD
RSD
t
BSD
T1
t
WEDF
t
RDS
t
T2
RSD
Rev.1.00 Jan. 10, 2008 Page 1591 of 1658
TH1
t
DACD
t
RDH
t
DACD
t
t
t
t
t
WED1
AD
CSD
RWD
RSD
32. Electrical Characteristics
REJ09B0261-0100