HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 604

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Rev. 6.00 Jun. 12, 2007 Page 572 of 610
REJ09B0131-0600
Section 21 Electrical Characteristics
Note: * An address pin connected to pin A10 of SDRAM
D15 to D0
A25 to A0
RD/WR
DQMxx
CKIO
A11 *
(Bank Active Mode: PRE + ACT + WRITE Commands, Different Row Addresses,
RAS
CAS
CKE
CSn
BS
Figure 21.29 Synchronous DRAM Burst Write Bus Cycle (Single Write × 4)
t
RASD
t
t
t
t
t
CSD1
DQMD
AD1
AD1
RWD
Tp
t
t
RASD
RWD
t
Row address
AD1
WTRCD = 0 Cycle, TRWL = 0 Cycle)
Tap
t
RASD
Tr
t
t
RASD
RWD
t
t
AD1
t
WDD2
t
t
CASD
AD1
BSD
Tc1
Column
address
(High)
t
WDH2
t
AD1
Tc2
address
Column
Write command
t
AD1
Tc3
Column
address
t
t
WDD2
AD1
Tc4
Column
address
t
t
DQMD
t
t
BSD
WDH2
t
t
t
CASD
t
AD1
AD1
RWD
CSD1