DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 164
DF3048BVX25V
Manufacturer Part Number
DF3048BVX25V
Description
MCU 3/5V 128K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3048BVX25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
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)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3048BVX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 6 Bus Controller
6.3.3
The H8/3048B Group allows either 8-bit access or 16-bit access to be designated for each of areas
7 to 0. An 8-bit-access area uses the upper data bus (D
upper data bus (D
In read access the RD signal applies without distinction to both the upper and lower data bus. In
write access the HWR signal applies to the upper data bus, and the LWR signal applies to the
lower data bus.
Table 6.4 indicates how the two parts of the data bus are used under different access conditions.
Table 6.4
Area
8-bit-access
area
16-bit-access
area
Note: Undetermined data means that unpredictable data is output.
Rev. 3.00 Sep 27, 2006 page 136 of 872
REJ09B0325-0300
Invalid means that the bus is in the input state and the input is ignored.
Data Bus
Access Conditions and Data Bus Usage
Access
Size
—
Byte
Word
15
to D
8
) and lower data bus (D
Read/
Write
Read
Write
Read
Write
Read
Write
Address
—
—
Even
Odd
Even
Odd
—
—
Valid
Strobe
RD
HWR
RD
HWR
LWR
RD
HWR,
LWR
7
to D
0
15
).
to D
Upper Data Bus
(D
Valid
Valid
Invalid
Valid
Undetermined data
Valid
Valid
15
8
to D
). A 16-bit-access area uses both the
8
)
Valid
Lower Data Bus
(D
Invalid
Undetermined data
Invalid
Undetermined data
Valid
Valid
Valid
7
to D
0
)
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