UPD70F3744GJ-GAE-AX Renesas Electronics America, UPD70F3744GJ-GAE-AX Datasheet - Page 406
UPD70F3744GJ-GAE-AX
Manufacturer Part Number
UPD70F3744GJ-GAE-AX
Description
MCU 32BIT V850ES/JX3 144-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3r
Datasheet
1.UPD70F3743GJ-GAE-AX.pdf
(911 pages)
Specifications of UPD70F3744GJ-GAE-AX
Core Processor
RISC
Core Size
32-Bit
Speed
32MHz
Connectivity
CSI, EBI/EMI, I²C, UART/USART
Peripherals
DMA, LVD, PWM, WDT
Number Of I /o
128
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
40K x 8
Voltage - Supply (vcc/vdd)
2.85 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD70F3744GJ-GAE-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 406 of 911
- Download datasheet (6Mb)
V850ES/JJ3
R01UH0016EJ0400 Rev.4.00
Sep 30, 2010
(2) Operation timing in pulse width measurement mode
(i) Operation to write 0 (without conflict with setting)
(ii) Operation to write 0 (conflict with setting)
(a) Clearing overflow flag
(TQ0OVF bit)
(TQ0OVF bit)
Overflow flag
Overflow flag
The overflow flag can be cleared to 0 by clearing the TQ0OVF bit to 0 with the CLR instruction and by writing 8-
bit data (bit 0 is 0) to the TQ0OPT0 register. To accurately detect an overflow, read the TQ0OVF bit when it is 1,
and then clear the overflow flag by using a bit manipulation instruction.
To clear the overflow flag to 0, read the overflow flag to check if it is set to 1, and clear it with the CLR
instruction. If 0 is written to the overflow flag without checking if the flag is 1, the set information of overflow
may be erased by writing 0 ((ii) in the above chart). Therefore, software may judge that no overflow has
occurred even when an overflow actually has occurred.
If execution of the CLR instruction conflicts with occurrence of an overflow when the overflow flag is cleared to
0 with the CLR instruction, the overflow flag remains set even after execution of the clear instruction.
0 write signal
0 write signal
set signal
set signal
Overflow
Overflow
L
CHAPTRER 8 16-bit TIMER/EVENT COUNTER Q (TMQ)
(iii) Operation to clear to 0 (without conflict with setting)
(iv) Operation to clear to 0 (conflict with setting)
access signal
(TQ0OVF bit)
access signal
(TQ0OVF bit)
Overflow flag
Overflow flag
0 write signal
0 write signal
set signal
set signal
Overflow
Overflow
Register
Register
L
H
Read
Read
Write
Write
Page 390 of 892
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