E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 232

• Manufacturer Part Number: E62655RUSB
• Description: EMULATOR BASE H8S/2655R W/USB
• Manufacturer: Renesas Electronics America
• Type: Microcontrollerr

Specifications of E62655RUSB

• Contents: E6000 Emulator Unit and 4 Logic Probes
• For Use With/related Products: H8S/2655R
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 6 Bus Controller
6.7.2
When DRAM or PSRAM space is accessed in DMAC single address mode, full access (normal
access) is always performed. The DACK output goes low from the T
DRAM interface, and from the T
In modes other than DMAC single address mode, burst access can be used when accessing DRAM
or PSRAM space.
Figure 6.41 shows the DACK output timing for the DRAM interface when DDS = 0.
Rev. 5.00 Sep 14, 2006 page 202 of 1060
REJ09B0331-05000
Figure 6.41 DACK
When DDS = 0
Read
Write
LCAS (LCAS)
DACK
DACK Output Timing when DDS = 0 (Example of DRAM Access)
DACK
CAS, (UCAS)
HWR, (WE)
HWR, (WE)
CS
D
D
A
n
15
15
23
DACK
(RAS)
to D
to D
to A
0
0
0
1
state in the case of the PSRAM interface.
T
p
Row
T
r
T
c1
Column
r
state in the case of the
T
c2