R5S72030W200FP Renesas Electronics America, R5S72030W200FP Datasheet - Page 367

• Manufacturer Part Number: R5S72030W200FP
• Description: IC SUPERH MPU ROMLESS 240QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7200r

Specifications of R5S72030W200FP

• Core Processor: SH2A-FPU
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: CAN, I²C, SCI, SSI, SSU, USB
• Peripherals: DMA, LCD, POR, PWM, WDT
• Number Of I /o: 82
• Program Memory Type: ROMless
• Ram Size: 80K x 8
• Voltage - Supply (vcc/vdd): 1.1 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 240-QFP
• For Use With: R0K572030S000BE - KIT DEV FOR SH7203HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

8.4
The number of execution states of an instruction is counted in the EX stage execution interval.
The number of states from the start of instruction 1 EX stage execution until the start of the EX
stage of following instruction 2 constitutes the execution time of instruction 1.
For example, in the case of the pipeline flow shown in figure 8.33, the EX stage interval of
instruction 1 and instruction 2 consists of 4 stages, and therefore the instruction 1 execution time is
4 states. Also, the EX stage interval of instruction 2 and instruction 3 consists of 1 states, and
therefore the instruction 2 execution time is 1 state.
If the program ends at instruction 3, take instruction 4 as the next instruction after instruction 3 in
virtual terms, and calculate the execution time of instruction 3 from the EX stages of instruction 3
and instruction 4 in MOV Rm,Rn. (In the example in figure 8.33, the execution time of
instruction 3 is 1 state.)
The execution time from instruction 1 through instruction 3 in figure 8.33 is a total of 4 + 1 + 1 =
6 states.
For the sake of simplicity, this figure does not take super-scalar operation into consideration.
Instruction 1
Instruction 2
Instruction 3
(Instruction 4: MOV Rm,Rn
Figure 8.33 Example of How to Count Number of Instruction Execution States
Number of Instruction Execution States
← 
(2)
IF


IF


(1)
→ ↔ ←  → ↔ ↔ ↔
ID
IF
EX
(1)
IF
MA
(3)
ID
IF
MA
—
IF
MA
Rev. 3.00 Jul 08, 2005 page 351 of 484
—
—
IF
WB
EX
(1)
ID
—
Section 8 Pipeline Operation
EX
(1)
ID
MA
EX )
(1)
REJ09B0051-0300