HD64F2338VFC25 Renesas Electronics America, HD64F2338VFC25 Datasheet - Page 297
HD64F2338VFC25
Manufacturer Part Number
HD64F2338VFC25
Description
MCU 3V 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.DF2338VFC25V.pdf
(1246 pages)
Specifications of HD64F2338VFC25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
106
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2338VFC25
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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In dual address mode, transfer is performed with the source address and destination address
specified separately.
In single address mode, on the other hand, transfer is performed between external space in which
either the transfer source or the transfer destination is specified by an address, and an external
device for which selection is performed by means of the DACK strobe, without regard to the
address. Figure 7.16 shows the data bus in single address mode.
When using the DMAC for single address mode reading, transfer is performed from external
memory to the external device, and the DACK pin functions as a write strobe for the external
device. When using the DMAC for single address mode writing, transfer is performed from the
external device to external memory, and the DACK pin functions as a read strobe for the external
device. Since there is no directional control for the external device, one or other of the above
single directions should be used.
Bus cycles in single address mode are in accordance with the settings of the bus controller for the
external memory area. On the external device side, DACK is output in synchronization with the
address strobe. For details of bus cycles, see section 7.5.11, DMAC Bus Cycles (Single Address
Mode).
Do not specify internal space for transfer addresses in single address mode.
Figure 7.17 Data Bus in Single Address Mode
(high impedance)
Chip
HWR, LWR
D
A
15
23
DACK
to D
to A
RD
0
0
Address bus
Rev.4.00 Sep. 07, 2007 Page 265 of 1210
(Read)
(Write)
External
External
memory
device
REJ09B0245-0400
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