HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 294

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

Section 6 Bus Controller (BSC)
The setting of bits TPC1 and TPC0 is also valid for T
Rev.7.00 Mar. 18, 2009 page 226 of 1136
REJ09B0109-0700
Read
Write
Address bus
DQMU, DQML
DQMU, DQML
Precharge-sel
Figure 6.47 Example of Timing with Two-State Precharge Cycle
Data bus
Data bus
SDRAMφ
CKE
CKE
RAS
RAS
CAS
CAS
WE
WE
φ
(TPC1 = 0, TPC0 = 1, SDWCD = 0, CAS Latency 2)
PALL
PALL
T
p1
Column address
NOP
NOP
T
p2
Row address
Row address
ACTV
ACTV
High
High
T
r
p
states in refresh cycles.
NOP
READ
T
c1
Column address
WRIT
T
cl
NOP
NOP
T
c2