M3087BFKGP#U3 Renesas Electronics America, M3087BFKGP#U3 Datasheet - Page 531
![IC M32C/87B MCU FLASH 144LQFP](/photos/12/31/123119/m3087bfkgp_u3_sml.jpg)
M3087BFKGP#U3
Manufacturer Part Number
M3087BFKGP#U3
Description
IC M32C/87B MCU FLASH 144LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M32C/80r
Datasheet
1.M3087BFLGPU3.pdf
(629 pages)
Specifications of M3087BFKGP#U3
Core Processor
M32C/80
Core Size
16/32-Bit
Speed
32MHz
Connectivity
CAN, EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
121
Program Memory Size
768KB (768K 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
-40°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
-
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M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 507 of 587
Figure 26.11
26.3.2.6
The lock bit program command is used to set the lock bit of a given block to 0 (locked).
By writing the command code xx77h in the first bus cycle and xxD0h to the highest-order even address of a
block to be locked in the second bus cycle, the lock bit of the specified block becomes 0. The address specified
in the first bus cycle must be the same highest-order even address of the block specified in the second bus cycle.
Figure 26.11 shows a flow chart of lock bit program command. Execute the read lock bit status command to
read lock bit status (lock bit data).
The FMR00 bit in the FMR0 register can be used to determine whether a lock bit program operation has been
completed or not.
Refer to 26.3.3 Data Protect Function for information on lock bit functions and how to set it to 1 (unlocked).
In EW1 mode, do not execute this command to the block where the rewrite control program is stored.
In EW0 mode, the flash memory enters read status register mode when a program operation starts.
Write the command code xx77h to the highest-order
Write xxD0h to the same highest-order
Lock Bit Program Command
Lock Bit Program Command
even address of block
even address of block
Full status check
FMR00 = 1?
Start
End
YES
NO
Write command code and data to the same even address.
26. Flash Memory
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