DF2218BR24V Renesas Electronics America, DF2218BR24V Datasheet - Page 190
![IC H8S/2218 MCU FLASH 112-LFBGA](/photos/12/42/124228/df2218br24v_sml.jpg)
DF2218BR24V
Manufacturer Part Number
DF2218BR24V
Description
IC H8S/2218 MCU FLASH 112-LFBGA
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Specifications of DF2218BR24V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
24MHz
Connectivity
SCI, SmartCard, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 6x10b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
112-LFBGA
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK2218-SS - KIT DEV H8S/2218 WINDOWS SIDESHW3DK2218 - DEV EVAL KIT H8S/2218
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2218BR24V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 190 of 758
- Download datasheet (5Mb)
6.6
The basic bus interface enables direct connection of ROM, SRAM, and so on.
6.6.1
Data sizes for the CPU and other internal bus masters are byte, word, and longword. The bus
controller has a data alignment function, and when accessing external space, controls whether the
upper data bus (D15 to D8) or lower data bus (D7 to D0) is used according to the bus
specifications for the area being accessed (8-bit access space or 16-bit access space) and the data
size.
8-Bit Access Space: Figure 6.8 illustrates data alignment control for the 8-bit access space. With
the 8-bit access space, the upper data bus (D15 to D8) is always used for accesses. The amount of
data that can be accessed at one time is one byte: a word transfer instruction is performed as two-
byte accesses, and a longword transfer instruction, as four-byte accesses.
16-Bit Access Space: Figure 6.9 illustrates data alignment control for the 16-bit access space.
With the 16-bit access space, the upper data bus (D15 to D8) and lower data bus (D7 to D0) are
used for accesses. The amount of data that can be accessed at one time is one byte or one word,
and a longword transfer instruction is executed as two word transfer instructions.
In byte access, whether the upper or lower data bus is used is determined by whether the address is
even or odd. The upper data bus is used for an even address, and the lower data bus for an odd
address.
Rev.7.00 Dec. 24, 2008 Page 134 of 698
REJ09B0074-0700
Basic Bus Interface
Data Size and Data Alignment (Supported Only by the H8S/2218 Group)
Figure 6.8 Access Sizes and Data Alignment Control (8-Bit Access Space)
Byte size
Word size
Longword
size
1st bus cycle
2nd bus cycle
1st bus cycle
2nd bus cycle
3rd bus cycle
4th bus cycle
D15
Upper data bus
D8 D7
Lower data bus
D0
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