UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 937

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(2) Halfword access (16 bits)
(a) When the data bus width is 16 bits
16-bit data is transmitted/received via a 16-bit bus. Therefore, if an even address is specified, the lower
and higher bytes of the external data bus address are accessed at the same time. If an odd address is
specified, the lower byte of the data is transmitted/received to/from an odd address via the higher byte of
the external data bus address in the first access. In the second access, the higher byte of the data is
transmitted/received to/from an even address via the lower 8 bits of the external data bus address.
<3> Access to address (4n + 2)
<1> Access to address (4n)
15
15
Halfword
data
8
7
0
8
7
0
Halfword
data
15
15
External
data bus
External
data bus
8
7
0
8
7
0
Address
Address
4n + 1
4n
4n + 3
4n + 2
CHAPTER 18 BUS CONTROL FUNCTION
User’s Manual U18279EJ3V0UD
15
15
Halfword
data
Halfword
data
8
7
0
8
7
0
1st access
1st access
<2> Access to address (4n + 1)
<4> Access to address (4n + 3)
15
15
External
data bus
8
7
0
8
7
0
External
data bus
Address
Address
4n + 1
4n + 3
15
15
Halfword
data
Halfword
data
8
7
0
8
7
0
2nd access
2nd access
15
15
8
7
0
External
data bus
8
7
0
External
data bus
Address
Address
4n + 2
4n + 4
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