M30626FJPGP#U3C Renesas Electronics America, M30626FJPGP#U3C Datasheet - Page 397

• Manufacturer Part Number: M30626FJPGP#U3C
• Description: IC M16C MCU FLASH 512K 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/60r

Specifications of M30626FJPGP#U3C

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 24MHz
• Connectivity: I²C, IEBus, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 85
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 31K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• For Use With: 867-1000 - KIT QUICK START RENESAS 62PR0K33062PS001BE - R0K33062P STARTER KITR0K33062PS000BE - KIT EVAL STARTER FOR M16C/62PM3062PT3-CPE-3 - EMULATOR COMPACT M16C/62P/30P
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M16C/62P Group (M16C/62P, M16C/62PT)
Rev.2.41
REJ09B0185-0241
24.15.8 Operation speed
24.15.9 Instructions inhibited against use
24.15.10 Interrupts
24.15.11 How to access
24.15.12 Writing in the user ROM area
EW0 Mode
EW1 Mode
EW0 Mode
EW1 Mode
Before entering CPU rewrite mode (EW0 or EW1 mode), set the CM11 bit in the CM1 register to “0” (main
clock), select 10 MHz or less for CPU clock using the CM06 bit in the CM0 register and CM17 to CM16 bits in
the CM1 register. Also, set the PM17 bit in the PM1 register to “1” (with wait state).
The following instructions cannot be used in EW0 mode because the flash memory’s internal data is referenced:
UND instruction, INTO instruction, JMPS instruction, JSRS instruction, and BRK instruction.
To set the FMR01, FMR02, or FMR11 bit to “1”, write “0” and then “1” in succession. This is necessary to
ensure that no interrupts or DMA transfers will occur before writing “1” after writing “0”. Also only when NMI
pin is “H” level.
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Jan 10, 2006
Any interrupt which has a vector in the relocatable vector table can be used providing that its vector is
transferred into the RAM area.
The NMI and watchdog timer interrupts can be used because the FMR0 register and FMR1 register are
initialized when one of those interrupts occurs. The jump addresses for those interrupt service routines
should be set in the fixed vector table.
Because the rewrite operation is halted when a NMI or watchdog timer interrupt occurs, the rewrite
program must be executed again after exiting the interrupt service routine.
The address match interrupt cannot be used because the flash memory’s internal data is referenced.
Make sure that any interrupt which has a vector in the variable vector table or address match interrupt will
not be accepted during the auto program or auto erase period.
Avoid using watchdog timer interrupts.
The NMI interrupt can be used because the FMR0 register and FMR1 register are initialized when this
interrupt occurs. The jump address for the interrupt service routine should be set in the fixed vector table.
Because the rewrite operation is halted when a NMI interrupt occurs, the rewrite program must be executed
again after exiting the interrupt service routine.
If the power supply voltage drops while rewriting any block in which the rewrite control program is stored,
a problem may occur that the rewrite control program is not correctly rewritten and, consequently, the flash
memory becomes unable to be rewritten thereafter. In this case, standard serial I/O or parallel I/O mode
should be used.
Avoid rewriting any block in which the rewrite control program is stored.
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24. Precautions