HD64F3048BF25 Renesas Electronics America, HD64F3048BF25 Datasheet - Page 208

• Manufacturer Part Number: HD64F3048BF25
• Description: IC H8 MCU FLASH 128K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048BF25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 7 Refresh Controller
Example 2: Connection to 2WE
Figure 7.9 shows typical interconnections to a single 2WE 4-Mbit DRAM, and the corresponding
address map. Figure 7.10 shows a setup procedure to be followed by a program for this example.
The DRAM in this example has 10-bit row addresses and 8-bit column addresses. Its address area
is H'600000 to H'67FFFF.
Rev. 3.00 Sep 27, 2006 page 180 of 872
REJ09B0325-0300
Figure 7.9 Interconnections and Address Map for 2WE
H8/3048B Group
H'600000
H'67FFFF
H'680000
H'7FFFFF
D
15
HWR
to D
LWR
CS
WE
WE
WE 4-Mbit DRAM (16-Mbyte Mode)
A
A
RD
A
A
A
A
A
A
A
A
18
17
8
7
6
5
4
3
2
1
3
0
DRAM area
Not used
a. Interconnections (example)
b. Address map
Area 3 (16-Mbyte mode)
WE 4-Mbit DRAM (Example)
WE
WE
2WE 4-Mbit DRAM with 10-bit
row address, 8-bit column address,
and
A
A
A
A
A
A
A
A
A
A
RAS
CAS
UW
LW
OE
I/O
9
8
7
6
5
4
3
2
1
0
15
16-bit organization
to I/O
0