HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 215

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Examples
Example 1 A store instruction accessing internal RAM occurs within four instructions after an
MOV.L #H'0C400000, R0
MOV.L #H'7C000204, R1
MOV.L @R0, R2
NOP
NOP
NOP
MOV.L R3, @R1
Example 2 A store instruction accessing internal RAM occurs within four instructions after an
MOV.L #H'7C002000, R1
MOV.L #H'12345678, R0
NOP
NOP
NOP
MOV.L R0, @R1
Example 3 A debugging tool generates a break to swap an instruction.
Original Instruction String After Instruction Swap Break
MOV.L #H'7C000000, R0
ADD R0, R0
MOV.L R1, @R0
instruction generating a TLB miss exception.
instruction causing an interrupt to be accepted.
MOV.L #H'7C000000, R0
TRAPA #H'01
MOV.L R1, @R0
R0 is an address causing a TLB miss.
R1 is an address mapped to internal RAM.
TLB miss exception occurs.
1st word
2nd word
3rd word
Store instruction accessing internal RAM
R1 is an address mapped to internal RAM.
An interrupt is accepted after this instruction.
1st word
2nd word
3rd word
Store instruction accessing internal RAM
Rev.4.00 Oct. 10, 2008 Page 115 of 1122
Contains address corresponding to R0.
R0 address is not a problem in original
instruction string.
Internal RAM is accessed by a store
operation because ADD is not executed.
The store is cancelled, but 2LW starting
at H'7C002000 is corrupted.
REJ09B0370-0400
4. Caches