r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 209

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Figure 6.5 CAS Latency Control Cycle Disable Timing during Continuous Synchronous
SDWCD 0
SDWCD 1
DQMU, DQML
DQMU, DQML
Precharge-sel
Precharge-sel
Address bus
Address bus
DRAM Space Write Access (for CAS Latency 2)
SDRAMφ
Data bus
Data bus
RAS
CKE
RAS
CKE
CAS
CAS
WE
WE
φ
Column address
Column address
PALL
PALL
T
T
p
p
Row address
Row address
Row address
Row address
ACTV
ACTV
T
T
r
r
High
High
NOP
NOP
T
T
c1
c1
Column address
Rev. 1.00 Sep. 19, 2008 Page 179 of 1342
Column address
WRIT
WRIT
T
T
c2
cl
Section 6 Bus Controller (BSC)
NOP
T
c2
REJ09B0467-0100