HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 689

• Manufacturer Part Number: HD64F2623FA20J
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2623FA20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Example in which Flash Memory Block Area EB0 is Overlapped
1. Set bits RAMS, RAM2 to RAM0 in RAMER to 1, 0, 0, 0, to overlap part of RAM onto the
2. Real-time programming is performed using the overlapping RAM.
3. After the program data has been confirmed, the RAMS bit is cleared, releasing RAM overlap.
4. The data written in the overlapping RAM is written into the flash memory space (EB0).
Notes: 1. When the RAMS bit is set to 1, program/erase protection is enabled for all blocks
area (EB0) for which real-time programming is required.
2. A RAM area cannot be erased by execution of software in accordance with the erase
3. Block area EB0 contains the vector table. When performing RAM emulation, the
regardless of the value of RAM2 to RAM0 (emulation protection). In this state, setting
the P1 or E1 bit in flash memory control register 1 (FLMCR1), will not cause a
transition to program mode or erase mode. When actually programming or erasing a
flash memory area, the RAMS bit should be cleared to 0.
vector table is needed in the overlap RAM.
algorithm while flash memory emulation in RAM is being used.
H'3FFFF
H'00000
H'01000
H'02000
H'03000
H'04000
H'05000
H'06000
H'07000
H'08000
Figure 19.15 Example of RAM Overlap Operation
Flash memory
EB8 to EB11
EB0
EB1
EB2
EB3
EB4
EB5
EB6
EB7
This area can be accessed
from both the RAM area
and flash memory area
Rev. 5.00 Jan 10, 2006 page 663 of 1042
On-chip RAM
Section 19 ROM (Preliminary)
H'FFD000
H'FFDFFF
H'FFEFBF
REJ09B0275-0500