HD6417727BP160CV Datasheet, PDF (390/1098 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/ SH7700 Series

Section 12 Bus State Controller (BSC)
CKIO has higher drive capacity than CKIO2. CKIO is suitable for driving heavy load, while
CKIO2 offers higher resistance to EMI noise and reflection. However, as the degree of these
characteristics vary depending on applications, their usage is not specified.
SH7727
A15
A14
A13
····
····
A2
CKIO, CKIO2
CKE
CSn
RAS
CAS
RD/WR
D31
····
····
D16
DQMUU
DQMUL
D15
····
····
D0
DQMLU
DQMLL
64M synchronous DRAM
(1M × 16-bit × 4-bank)
A13
A12
A11
····
····
A0
CLK
CKE
CS
RAS
CAS
WE
DQ15
····
····
DQ0
DQMU
DQML
A13
A12
A11
····
····
A0
CLK
CKE
CS
RAS
CAS
WE
DQ15
····
····
DQ0
DQMU
DQML
Figure 12.11 Example of 64-Mbit Synchronous DRAM Connection (32-Bit Bus Width)
Rev.6.00 Mar. 27, 2009 Page 332 of 1036
REJ09B0254-0600