HD6417760BL200AV Renesas Electronics America, HD6417760BL200AV Datasheet - Page 274

• Manufacturer Part Number: HD6417760BL200AV
• Description: SH4 7760, 17 X17 256BGA, LCDC, U
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417760BL200AV

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: Audio Codec, CAN, EBI/EMI, FIFO, I²C, MFI, MMC, SCI, Serial Sound, SIM, SPI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 69
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

8.3.2
A priority ranking is provided for all exceptions for use in determining which of two or more
simultaneously generated exceptions should be accepted. Five of the general exceptions—general
illegal instruction exception, slot illegal instruction exception, general FPU disable exception, slot
FPU disable exception, and unconditional trap exception—are detected in the process of
instruction decoding, and do not occur simultaneously in the instruction pipeline. These
exceptions therefore all have the same priority. General exceptions are detected in the order of
instruction execution. However, exception handling is performed in the order of instruction flow
(program order). Thus, an exception for an earlier instruction is accepted before that for a later
instruction. An example of the order of acceptance for general exceptions is shown in figure 8.2.
Rev. 2.00 Feb. 12, 2010 Page 190 of 1330
REJ09B0554-0200
Exception Source Acceptance
Figure 8.2 Example of General Exception Acceptance Order
Pipeline flow:
Order of detection:
Order of exception handling:
Instruction n
Instruction n + 1
Instruction n + 2
Instruction n + 3
General illegal instruction exception (instruction n + 1) and
TLB miss (instruction n + 2) are detected simultaneously
TLB miss (instruction n)
TLB miss (instruction n)
Re-execution of instruction n
General illegal instruction exception
(instruction n + 1)
Re-execution of instruction n + 1
TLB miss (instruction n + 2)
Re-execution of instruction n + 2
Execution of instruction n + 3
Legend:
IF
ID : Instruction decode
EX : Instruction execution
MA : Memory access
WB : Write-back
: Instruction fetch
IF
IF
ID
ID
IF
TLB miss (instruction access)
General illegal instruction exception
EX
EX
ID
IF
MA
MA
EX MA WB
ID
TLB miss (data access)
Program order
WB
WB
EX MA WB
1
2
3
4