HD6413308 Hitachi Semiconductor, HD6413308 Datasheet - Page 295

• Manufacturer Part Number: HD6413308
• Description: Hitachi Single-Chip MicroComputer
• Manufacturer: Hitachi Semiconductor

17.3.8 Dual-Port RAM Timing
(1) Read Cycle 1
(2) Read Cycle 2
(3) Read Cycle 3
Notes: 1. WE should be High during a read cycle.
Note: WE should be High during a read cycle.
Notes: 1. WE should be High during a read cycle.
CS
DDB
RS
OE
CS
DDB
RS
2. The address on the register select lines should be set up by the time CS goes Low, or before that time.
3. OE = V
DDB
2. CS = V
3. OE = V
3
3
to RS
7
7
to RS
7
to DDB
to DDB
to DDB
0
0
IL
0
0
IL
IL
0
Figure 17-20. Dual-Port RAM Read Timing
t
DOH
t
t
DACS
DAA
t
t
DAA
DACS
287
t
DOE
t
DCHZ
t
t
t
DOH
DOHZ
DCHZ
t
DOH