R5F61665N50FPV Renesas Electronics America, R5F61665N50FPV Datasheet - Page 271

• Manufacturer Part Number: R5F61665N50FPV
• Description: MCU FLASH 512K ROM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61665N50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; 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: -

9.5.6
Data sizes for the CPU and other internal bus masters are byte, word, and longword. The bus
controller has a data alignment function, and controls whether the upper byte 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), the data size, and endian format when
accessing external address space.
(1)
With the 8-bit access space, the lower byte data bus (D7 to D0) is always used for access. 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.
Figures 9.11 and 9.12 illustrate data alignment control for the 8-bit access space. Figure 9.11
shows the data alignment when the data endian format is specified as big endian. Figure 9.12
shows the data alignment when the data endian format is specified as little endian.
Figure 9.11 Access Sizes and Data Alignment Control for 8-Bit Access Space (Big Endian)
Longword
8-Bit Access Space
Data
Size
Byte
Word
Endian and Data Alignment
Access
Address
n
n
n
Access
Count
1
2
4
Bus
Cycle
1st
1st
2nd
1st
2nd
3rd
4th
Data Size
Byte
Byte
Byte
Byte
Byte
Byte
Byte
Rev. 2.00 Oct. 21, 2009 Page 237 of 1454
Section 9 Bus Controller (BSC)
D15
LHWR/LUB
Strobe signal
REJ09B0498-0200
Data bus
D8 D7
RD
15
31
23
15
7
7
7
LLWR/LLB
D0
24
16
0
8
0
8
0