UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 503
UPD70F3451GC-UBT-A
Manufacturer Part Number
UPD70F3451GC-UBT-A
Description
MCU 32BIT 128KB FLASH 80LQFP
Manufacturer
Renesas Electronics America
Series
V850E/Ix3r
Datasheet
1.UPD70F3451GC-UBT-A.pdf
(1191 pages)
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD70F3451GC-UBT-A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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(e) Clearing overflow flag
Note The overflow counter is set arbitrarily by software on the internal RAM.
<1> Read the TTmCCRa register (setting of the default value of the TITma pin input).
<2> An overflow occurs. Increment the overflow counter and clear the overflow flag to 0 in the
<3> An overflow occurs a second time. Increment the overflow counter and clear the overflow flag to 0
<4> Read the TTmCCRa register.
Remark
The overflow flag can be cleared to 0 by clearing the TTmOVF bit to 0 with the CLR instruction after
reading the TTmOVF bit when it is 1 and by writing 8-bit data (bit 0 is 0) to the TTmOPT0 register after
reading the TTmOVF bit when it is 1.
TTmCCRa register
INTTTIOVm signal
overflow interrupt servicing.
in the overflow interrupt servicing.
Read the overflow counter.
→ When the overflow counter is “N”, the pulse width can be calculated by (N × 10000H + D
Clear the overflow counter (0H).
TITma pin input
16-bit counter
D
In this example, the pulse width is (20000H + D
TTmOVF bit
a0
V850E/IF3: m = 1, a = 0, 1
V850E/IG3: m = 0, 1, a = 0, 1
TTmCE bit
counter
).
Overflow
FFFFH
0000H
Note
CHAPTER 8 16-BIT TIMER/EVENT COUNTER T (TMT)
Example when capture trigger interval is long
User’s Manual U18279EJ3V0UD
0H
D
a0
<1> <2>
a1
1 cycle of 16-bit counter
– D
a0
Pulse width
) because an overflow occurs twice.
D
1H
a0
<3> <4>
D
a1
2H 0H
D
a1
a1
–
501
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