UPD70F3740GC-UEU-AX Renesas Electronics America, UPD70F3740GC-UEU-AX Datasheet - Page 729

• Manufacturer Part Number: UPD70F3740GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3r

Specifications of UPD70F3740GC-UEU-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: 84
• 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 12x10b; 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: -

V850ES/JG3
24.6 Emulation Function
controlled and emulated by manipulating the PEMU1 register on the debugger.
R01UH0015EJ0300 Rev.3.00
Sep 30, 2010
When an in-circuit emulator is used, the operation of the RAM retention flag (RAMS.RAMF bit) can be pseudo-
This register is valid only in the emulation mode. It is invalid in the normal mode.
(1) Peripheral emulation register 1 (PEMU1)
[Usage]
When an in-circuit emulator is used, pseudo emulation of RAMF is realized by rewriting this register on the debugger.
<1> CPU break (CPU operation stops.)
<2> Set the EVARAMIN bit to 1 by using a register write command.
<3> Clear the EVARAMIN bit to 0 by using a register write command again.
<4> Run the CPU and resume emulation.
By setting the EVARAMIN bit to 1, the RAMF bit is set to 1 on hardware (the internal RAM data is invalid).
Unless this operation is performed (clearing the EVARAMIN bit to 0), the RAMF bit cannot be cleared to 0 by a
CPU operation instruction.
After reset: 00H
PEMU1
EVARAMIN
Caution This bit is not automatically cleared.
7
0
0
1
R/W
Do not detect voltage lower than RAM retention voltage.
Detect voltage lower than RAM retention voltage (set RAMF flag).
6
0
Pseudo specification of RAM retention voltage detection signal
Address: FFFFF9FEH
5
0
4
0
CHAPTER 24 LOW-VOLTAGE DETECTOR (LVI)
3
0
EVARAMIN
2
1
0
0
0
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