UPD70F3740GC-UEU-AX Renesas Electronics America, UPD70F3740GC-UEU-AX Datasheet - Page 772

• 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
R01UH0015EJ0300 Rev.3.00
Sep 30, 2010
(3) Reset vector
A reset vector includes the jump instruction for the debug monitor program.
[How to secure areas]
It is not necessary to secure this area intentionally. When downloading a program, however, the debugger rewrites
the reset vector in accordance with the following cases. If the rewritten pattern does not match the following cases,
the debugger generates an error (F0C34 when using the ID850QB).
(a) When two nop instructions are placed in succession from address 0
(b) When two 0xFFFF are successively placed from address 0 (already erased device)
(c) The jr instruction is placed at address 0 (when using CA850)
(d) mov32 and jmp are placed in succession from address 0 (when using IAR compiler ICCV850)
(e) The jump instruction for the debug monitor program is placed at address 0
Before rewriting
Jumps to debug monitor program at 0x0
Before rewriting
0x0 nop
0x2 nop
0x4 xxxx
Before rewriting
0x0 0xFFFF
0x2 0xFFFF
0x4 xxxx
Before rewriting
0x0 jr disp22
Before rewriting
0x0 mov imm32,reg1 → Jumps to debug monitor program at 0x0
0x6 jmp [reg1]
→
→
→
After rewriting
Jumps to debug monitor program at 0x0
0x4 xxxx
After rewriting
Jumps to debug monitor program at 0x0
0x4 xxxx
After rewriting
Jumps to debug monitor program at 0x0
0x4 jr disp22 - 4
After rewriting
0x4 mov imm32,reg1
0xa jmp [reg1]
→
After rewriting
No change
CHAPTER 28 ON-CHIP DEBUG FUNCTION
Page 756 of 870