HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 178

• Manufacturer Part Number: HD6417034B
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 Bus State Controller (BSC)
Rev. 7.00 Jan 31, 2006 page 152 of 658
REJ09B0272-0700
control
control
Byte
Byte
A21–A0
A21–A0
CASH
CASH
CASL
CASL
WRH
WRH
WRL
WRL
Figure 8.21 Byte Access Control Timing for DRAM Access
RAS
RAS
CK
CK
(Upper Byte Write Cycle, Short Pitch)
T
T
p
p
(a) Dual CAS signals (CW2 = 0)
(b) Dual WE signals (CW2 = 1)
T
T
Row address
Row address
r
r
Fixed high
High
Fixed high
High
T
T
Column address
Column address
c
c