DF2556FC20DV Renesas Electronics America, DF2556FC20DV Datasheet - Page 752

• Manufacturer Part Number: DF2556FC20DV
• Description: IC H8S/2556 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2556FC20DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 20 Flash Memory
(1)
Parts of the procedure program that are made by the user, like download request,
programming/erasing procedure, and determination of the result, must be executed in the on-chip
RAM. The on-chip program that is to be downloaded is all in the on-chip RAM. Note that area in
the on-chip RAM must be controlled so that these parts do not overlap.
Figure 20.10 shows the program area to be downloaded.
Rev. 6.00 Sep. 24, 2009 Page 704 of 928
REJ09B0099-0600
On-Chip RAM Address Map when Programming/Erasing Is Executed
Figure 20.10 RAM Map when Programming/Erasing Is Executed
programming/erasing
processing period
Unusable area in
(Size: 2 kbytes)
downloaded
Area to be
Initialization + programming program
Programming/erasing program entry
Initialization + erasing program
area that can be used by user
area that can be used by user
Initialization program entry
RAM emulation area or
RAM emulation area or
(Return value: 1 byte)
System use area
<On-chip RAM>
(15 bytes)
DPFR
or
RAMTOP (H'FF7000)
FTDAR setting
FTDAR setting + 16
FTDAR setting + 32
FTDAR setting + 2k
RAMEND (H'FFEFBF)
Address