HD64F7144F50V Renesas Electronics America, HD64F7144F50V Datasheet - Page 721

• Manufacturer Part Number: HD64F7144F50V
• Description: IC SUPERH MCU FLASH 256K 112QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7144r

Specifications of HD64F7144F50V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-QFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 19.8 shows a sample procedure for flash memory block area overlapping.
1. The RAM area to be overlapped is fixed at a 4-kbyte area in the range H'FFFFE000 to
2. The flash memory area to be overlapped is selected by RAMER from a 4-kbyte area of the
3. The overlapped RAM area can be accessed from both the flash memory addresses and RAM
4. When the RAMS bit in RAMER is set to 1, program/erase protection is enabled for all flash
5. A RAM area cannot be erased by execution of software in accordance with the erase
6. Block area EB0 contains the vector table. When performing RAM emulation, the vector table
H'FFFFEFFF.
EB0 to EB7 blocks.
addresses.
memory blocks (emulation protection). In this state, setting the P or E bit in FLMCR1 to 1
does not cause a transition to program mode or erase mode.
algorithm.
is needed in the overlapped RAM.
Figure 19.8 Example of RAM Overlap Operation (RAM[2:0] = B'000)
H'3FFFF
H'00000
H'01000
H'02000
H'03000
H'04000
H'05000
H'06000
H'07000
H'08000
Flash Memory
EB8 to EB11
EB0
EB1
EB2
EB3
EB4
EB5
EB6
EB7
This area can be accessed from
both the flash memory addresses
and RAM addressed.
Rev.4.00 Mar. 27, 2008 Page 675 of 882
On-chip RAM
19. Flash Memory (F-ZTAT Version)
H'FFFFE000
H'FFFFEFFF
H'FFFFFFFF
REJ09B0108-0400