HD64F7045F28V Renesas Electronics America, HD64F7045F28V Datasheet - Page 467

• Manufacturer Part Number: HD64F7045F28V
• Description: IC SH2 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7040r

Specifications of HD64F7045F28V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 28.7MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

3. When a MULS.W instruction is located immediately after a MAC.W instruction
4. When a DMULS.L instruction is located immediately after a MAC.W instruction
Other instruction
Other instruction
Other instruction
MULS.W instructions have an MA stage for accessing the multiplier. When the MA of the
MULS.W instruction contends with an operating MAC.W instruction multiplier (mm), the MA
is extended until the mm ends (the M—A shown in the dotted line box in figure 7.37) to create
a single slot. When one or more instructions not related to the multiplier come between the
MAC.W and MULS.W instructions, MAC.W and MULS.W contention does not cause
stalling. There is no MULS.W MA contention while the MAC.W instruction multiplier is
operating (mm). When the MULS.W MA and IF contend, the slot is split.
DMULS.L instructions have an MA stage for accessing the multiplier, but there is no
DMULS.L MA contention while the MAC.W instruction multiplier is operating (mm). When
the DMULS.L MA and IF contend, the slot is split (figure 7.38).
Figure 7.37 MULS.W Instruction Immediately After a MAC.W Instruction
MULS.W
MULS.W
MAC.W
MAC.W
......
......
IF
IF
ID
ID
IF
IF
EX
EX
—
—
MA
MA
ID
ID
IF
IF
MA
MA
EX
EX
ID
ID
IF
mm
mm
EX
EX MA mm
M——A
ID
mm
mm
EX MA ....
—
mm mm
MA
Rev. 5.00 Jun 30, 2004 page 451 of 512
mm
....
Section 7 Pipeline Operation
REJ09B0171-0500O
: Slot
: Slot