HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 808

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Rev. 1.00, 02/04, page 770 of 804
D15 to D0
A23 to A0
Note: * Address pin that is connected to A10 of SDRAM
RD/WR
DQMn
CKIO
A11*
RAS
CAS
CKE
CS3
BS
Figure 28.40 Access Timing in Low-Frequency Mode of Synchronous DRAM
t
t
t
t
DQMD2
t
RASD2
CASD2
RWD2
t
t
CSD2
AD3
AD3
Tr
Address
Row
t
BSD
t
t
CASD2
t
t
RASD2
AD3
AD3
(Auto Precharge Mode, TRWL = 1 Cycle)
Tc
(High)
Command
Address
Column
READA
t
BSD
t
CASD2
t
t
AD3
AD3
Td1
t
RDS4
t
t
RDH4
DQMD2
t
CSD2
Tde
Tap
t
t
DQMD2
t
t
t
RASD2
AD3
AD3
CSD2
Tr
Address
t
Row
BSD
t
t
t
RASD2
CASD2
t
t
RWD2
t
AD3
AD3
WDD3
Tc
(High)
Command
Address
WRITA
Column
t
t
BSD
t
t
DQMD2
t
t
CASD2
RWD2
CSD2
WDH3
t
AD3
Tnop
t
t
AD3
AD3
Trwl
Tap