R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1195

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

H8S/2427, H8S/2427R, H8S/2425 Group
The difference between the programming procedures in user program mode and user boot mode is
the memory MAT switching, as shown in figure 23.10.
In user boot mode, though the user boot ROM can be seen in the flash memory space, the user
ROM is hidden in the background. Therefore, the user ROM and user boot ROM are switched
only while the user ROM is being programmed. Because the user boot ROM is hidden while the
user ROM is being programmed, the procedure program must be executed in the on-chip RAM
area. After programming completes, switch the memory MATs again to return to the first state.
Memory MAT switching is enabled by writing the defined value to the FMMS bit in FLMMATS.
However note that access to a memory MAT is not allowed until memory MAT switching is
completed. During memory MAT switching, the LSI is in an unstable state, e.g. if an interrupt
occurs, from which memory MAT the interrupt vector is read is undetermined. Perform memory
MAT switching in accordance with the description in section 23.13, Switching between User
ROM and User Boot ROM.
REJ09B0565-0100 Rev. 1.00
Jul 22, 2010
executed by programming control program
Jump to programming control program
transferred to an area other than flash
Transfer programming control program
to an area other than flash memory*
memory (subsequent processing is
in an area other than flash memory)
Set FMCMDEN bit in FLMCR1 to 1
Figure 23.10 Procedure for Programming User ROM in User Boot Mode
Set CBIDB bit in FLMCR1 to 1
Set FLSHE bit in SYSCR to 1
Start of programming
procedure program
1
Programming control
program
Write 0 to FLMCMDEN bit and then write 1
Jump to specified address in flash memory
Clear CBIDB bit to 0 (user program
Clear FMMS bit in FLMMATS to 0
Write 1 to CBIDB bit (user program
Set FMMS bit in FLMMATS to 1
Execute read array command
Execute program command
End of programming
procedure program
mode is enabled)
mode is disabled)
Section 23 Flash Memory
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switchover
switchover
MAT
MAT