UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 942

• 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: -

940
(4) Allocation of area for debug monitor program
The shaded portions in Figure 31-5 are the areas where the debug monitor program is allocated. The monitor
program performs initialization processing for the debug communication interface and run or break processing
for the CPU. The internal ROM area must be filled with 0xFF. This area must not be rewritten by the user
program.
[How to secure area for the debug monitor program]
It is not necessarily required to secure this area if the user program does not use this area.
To avoid problems that may occur during debugger startup, however, it is recommended to secure this area in
advance, using the compiler.
The following shows examples of securing the area, using the NEC Electronics compiler CA850. Add the
assemble source file and link directive code, as shown below.
• Assemble source (Add the following code as an assemble source file.)
• Link directive (Add the following code to the link directive file.)
-- Secures 2 KB space for monitor ROM section
.section "MonitorROM", const
.space
-- Secures interrupt vector for debugging
.section "DBG0"
.space
-- Secures interrupt vector for serial communication
-- Change the section name according to the serial communication mode used
.section "INTCB0R"
.space
-- Secures 16-byte space for monitor RAM section
.section "MonitorRAM", bss
.lcomm
MROMSEG
};
MRAMSEG
};
The following shows an example when using the
003FFFFH) and internal RAM is 16 KB (end address is 3FFEFFFH)).
0x800, 0xff
4, 0xff
4, 0xff
monitorramsym, 16, 4
: !LOAD ?R V0x03f800{
MonitorROM
: !LOAD ?RW V0x03ffeff0{
MonitorRAM
CHAPTER 31 ON-CHIP DEBUG FUNCTION
= $PROGBITS
= $NOBITS
User’s Manual U18953EJ5V0UD
-- defines symbol monitorramsym
μ
PD70F3738 (the internal ROM is 256 KB (end address is
?A MonitorROM;
?AW MonitorRAM;