HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 335

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Figure 6.82 Example of Timing for Idle Cycle Insertion in Case of Consecutive Read and
Write Accesses to Continuous Synchronous DRAM Space in RAS Down Mode
Precharge-sel
DQMU, DQML
Address bus
Data bus
CKE
CAS
RAS
WE
φ
PALL ACTV READ
(SDWCD = 1, CAS Latency 2)
Column
address
T
p
Continuous synchronous
DRAM space read
address
Row
T
r
T
c1
Column
address
T
cl
Rev.7.00 Mar. 18, 2009 page 267 of 1136
High
T
c2
Idle cycle
Continuous synchronous
DRAM space write
NOP
T
External address
i
Section 6 Bus Controller (BSC)
T
c1
WRIT
T
c2
REJ09B0109-0700