UPD70F3771GF-GAT-AX Renesas Electronics America, UPD70F3771GF-GAT-AX Datasheet - Page 1344

• Manufacturer Part Number: UPD70F3771GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

Specifications of UPD70F3771GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: CAN, CSI, EBI/EMI, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K 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-H, V850ES/JH3-H
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
(2) Internal RAM data status register (RAMS)
The RAMS register is a special register. This can be written only in a special combination of sequences (see 3.4.8
Special registers).
This register is a flag register that indicates whether the internal RAM is valid or not.
This register can be read or written in 8-bit or 1-bit units.
The set/clear conditions for the RAMF bit are shown below.
• Setting conditions: Detection of voltage lower than specified level
• Clearing condition: Writing of 0 in specific sequence
RAMS
After reset: 01H
Note This register is reset only when a voltage drop below the RAM retention voltage is detected.
RAMF
7
0
0
1
Note
Set by instruction
Voltage lower than RAM retention voltage is not detected.
Voltage lower than RAM retention voltage is detected.
R/W
6
0
Address: FFFFF892H
5
0
Internal RAM voltage detection
4
0
CHAPTER 28 LOW-VOLTAGE DETECTOR (LVI)
3
0
2
0
1
0
RAMF
<0>
Page 1344 of 1509