DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 856

• Manufacturer Part Number: DF61654N50FTV
• Description: IC H8SX/1654 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61654N50FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 75
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 20 Flash Memory (0.18-µm F-ZTAT Version)
(4)
By changing the on-chip RAM start address of the download destination in FTDAR, the erasing
program and programming program can be downloaded to separate on-chip RAM areas.
Figure 20.15 shows a repeating procedure of erasing, programming, and RAM emulation.
In Figure 20.15, since RAM emulation is performed, the erasing/programming program is
downloaded to avoid the 4-kbyte on-chip RAM area (H'FFA000 to H'FFAFFF). Download and
initialization are performed only once at the beginning. Note the following when executing the
procedure program.
• Be careful not to overwrite data in the on-chip RAM with overlay settings. In addition to the
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programming program area, erasing program area, and RAM emulation area, areas for the
procedure programs, work area, and stack area are reserved in the on-chip RAM. Do not make
settings that will overwrite data in these areas.
Procedure of Erasing, Programming, and RAM Emulation in User Program Mode
Download programming program
Figure 20.15 Repeating Procedure of Erasing, Programming,
Initialize programming program
Download erasing program
destination to H'FF9000)
Initialize erasing program
destination H'FFB000)
Set FTDAR to H'00
Set FTDAR to H'02
(specify download
(specify download
Start procedure
program
and RAM Emulation in User Program Mode
1
(execute programming program)
emulation mode and tuning
and program relevant block
parameters in on-chip RAM
(execute erasing program)
Make a transition to RAM
Set FMPDR to H'FFA000
Exit emulation mode
Erase relevant block
Confirm operation
End procedure
program
End ?
1
Yes
No