R4F24568NVFQV Renesas Electronics America, R4F24568NVFQV Datasheet - Page 224
R4F24568NVFQV
Manufacturer Part Number
R4F24568NVFQV
Description
MCU 128KKB FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of R4F24568NVFQV
Core Processor
H8S/2600
Core Size
16/32-Bit
Speed
32MHz
Connectivity
EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART, USB
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 6 Bus Controller (BSC)
6.5
The basic bus interface enables direct connection of ROM, SRAM, and so on.
6.5.1
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 address 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.
(1)
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 access is performed as two byte accesses, and a longword
access, as four byte accesses.
Page 194 of 1392
8-Bit Access Space
Figure 6.8 Access Sizes and Data Alignment Control (8-Bit Access Space)
Basic Bus Interface
Data Size and Data Alignment
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
H8S/2456, H8S/2456R, H8S/2454 Group
Lower data bus
REJ09B0467-0350 Rev. 3.50
D0
Jul 07, 2010
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