M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 519

• 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 495 of 587
26.2
26.1.1
26.2.1
26.2.2
Parallel I/O mode has a ROM code protect function, and standard I/O mode has an ID code check function to
prevent the flash memory from being read or programmed.
Use the following procedure to enter boot mode and a program in the boot ROM area is executed.
When switching from the boot ROM area to the user ROM area, set the FMR05 bit in the FMR0 register to 1
(access the user ROM area) by the program placed in the area other than the flash memory.
The rewrite control program for standard serial I/O mode is stored in the boot ROM area in the factory default
configuration. If a given rewrite control program is written in the boot ROM area, the flash memory can be
rewritten along the implemented system.
The ROM code protect function disables reading or programming the contents of the flash memory in parallel I/
O mode. To use ROM code protect function, set the ROMCP1 bits in the ROMCP address.
The ROMCP address is placed in a user ROM area. Figure 26.2 shows the ROMCP address.
The ID code check function is used in standard serial I/O mode. The ID code sent from the serial programmer
and the ID code written in the flash memory are checked to see if they match. If these ID codes do not match,
the commands sent from the serial programmer are not accepted. However, if the four bytes of the reset vector
are set to FFFFFFFFh
The ID code is 7-byte data stored consecutively, beginning with the first byte, into addresses 0FFFFDFh,
0FFFFE3h, 0FFFFEBh, 0FFFFEFh, 0FFFFF3h, 0FFFFF7h, and 0FFFFFBh. To use ID code check function,
write the program which specifies the ID code to these addresses.
NOTE:
Functions to Prevent Access to Flash Memory
(1) Apply an “L” (pull-down) to the P6_5 pin or apply an “H” (pull-up) to the P6_7 pin
(2) Apply an “L” (pull-down) to the EPM (P5_5) pin and apply an “H” (pull-up) to the CE (P5_0) pin
(3) Apply an “H” to the CNVSS pin
(4) Perform a hardware reset
1. FFFFFFFFh is the factory default setting.
Boot Mode
ROM Code Protect Function
ID Code Check Function
(1)
, the ID codes are not checked and all commands can be accepted.
26. Flash Memory