M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 522

• Manufacturer Part Number: M3087BFLBGP#U5
• Description: IC M32C/87 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M3087BFLBGP#U5

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 498 of 587
Figure 26.4
26.3.1
26.3.1.1
26.3.1.2
Flash Memory Control Register 0
b7
The FMR00 bit indicates the operating status of the flash memory. It becomes 0 while the program command,
block erase command, lock bit program command, or read lock bit status command is being executed,
otherwise, it is 1.
The flash memory can accept a command when the FMR01 bit is set to 1 (CPU rewrite mode enabled). Set the
FMR05 bit to 1 (user ROM area accessed) as well if the MCU is in boot mode.
b6 b5 b4
NOTES:
1. Set bits FMR01 and FMR02 while the NMI pin level is held "H".
2. To set the FMR02 bit to 1, write a 1 to the FMR02 bit immediately after writing a 0 to the bit while the FMR01 bit is set to 1.
3. Set bits FMSTP and FMR05 by the program placed in an area other than the flash memory.
4. Bits FMR07 and FMR06 are set to 0 by executing the clear status command.
5. The FMSTP bit is enabled when the FMR01 bit is set to 1 (CPU rewrite mode enabled). Bits FMSTP can be set to 1 even
6. Program and read operations by lock bit program command, read lock bit status command, and protect bit program command
7. To change the FMR01 bit from 0 to 1 , write a 1 to the FMR01 bit immediately after writing a 0 to it. Write the value in 8-bit
0
Flash Memory Control Register (FMR0 and FMR1 Registers)
Write the value in 8-bit units. Do not generate an interrupt or a DMA or DMACII transfer between these two settings.
when the FMR01 bit is set to 0, but the flash memory does not enter low-power consumption state nor is initialized.
are included.
units. Do not generate an interrupt or a DMA or DMACII transfer between these two settings.
To change the FMR01 bit from 1 to 0 , enter read array mode first, and then write to the address 0057h in 16-bit units. Set
the eight high-order bits to 00h.
b3
e.g., To change the FMR01 bit from 1 to 0;
b2
FMR0 Register
FMR00 Bit
FMR01 Bit
b1
b0
Assembly language: mov.w #0000h, 0057h
Bit Symbol
FMR00
FMR01
FMR02
FMSTP
FMR05
FMR06
FMR07
Symbol
FMR0
(b4)
−
RY/BY status flag
CPU rewrite mode select bit
Lock bit disable select bit
Flash memory stop bit
Reserved bit
User ROM area select bit
(available in boot mode only)
Program status flag
Erase status flag
Bit Name
(4)
(4)
(3)(5)
(2)
(3)
Address
0057h
(1)(7)
0: BUSY (programming or erasing in progress)
1: READY
0: CPU rewrite mode disabled
1: CPU rewrite mode enabled
0: Lock bit enabled
1: Lock bit disabled
0: Flash memory started
1: Flash memory stopped
Set to 0
0: Boot ROM area accessed
1: User ROM area accessed
0: Successfully completed
1: Terminated by error
0: Successfully completed
1: Terminated by error
(enters low-power consumption state and flash
memory is initialized)
Function
After Reset
0000 0001b
26. Flash Memory
(6)
RW
RW
RW
RW
RW
RW
RO
RO
RO