HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 794

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

Rev. 1.00, 02/04, page 756 of 804
D15 to D0
A23 to A0
RD/WR
DQMn
CKIO
Note: * Address pin that is connected to A10 of SDRAM
A11*
RAS
CAS
CKE
CS3
BS
Figure 28.26 Burst Read Bus Cycle of Synchronous DRAM (Single Read × 4)
(Auto Precharge Mode, CAS Latency 2, TRCD = 2 Cycle, TRP = 1 Cycle)
t
t
t
t
DQMD1
t
RASD1
CASD1
RWD1
CSD1
t
t
AD1
AD1
Tr
t
RASD1
Address
Row
Trw
t
CASD1
t
t
t
BSD
AD1
AD1
Tc1
Address1
Column
t
AD1
(High)
Tc2
Command
Address2
Column
READ
t
AD1
Td1
Tc3
t
RDS2
Address3
Column
t
RDH2
t
t
AD1
AD1
Td2
Tc4
t
RDS2
Command
READA
t
t
RDH2
CASD1
t
BSD
t
AD1
Address4
Column
Td3
t
RDS2
t
RDH2
Td4
t
RDS2
t
t
DQMD1
t
RDH2
CSD1
Tde
t
t
RASD1
CASD1
t
t
t
RWD1
AD1
AD1
Tap