UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 941

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 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: -

(3) Reset vector
The reset vector includes the jump instruction for the debug monitor program.
[How to secure the reset vector]
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 values 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
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]
Before rewriting
Jumps to debug monitor program at 0x0
→
→
→
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]
CHAPTER 31 ON-CHIP DEBUG FUNCTION
User’s Manual U18953EJ5V0UD
→
After rewriting
No change
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