HD64F7047F50V Renesas Electronics America, HD64F7047F50V Datasheet - Page 473

• Manufacturer Part Number: HD64F7047F50V
• Description: IC H8 MCU FLASH 256K 100TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7047r

Specifications of HD64F7047F50V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Package: 100PQFP
• Family Name: SuperH
• Maximum Speed: 50 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 53
• Interface Type: CAN/SCI
• On-chip Adc: 16-chx10-bit
• Number Of Timers: 7
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

1. When a MAC.L instruction is located immediately after another MAC.L instruction
MAC.L
MAC.L
MAC.L
MAC.L
When the second MA of the MAC.L instruction contends with the mm produced by the
previous multiplication instruction, the MA bus cycle is extended until the mm ends (the M—
A shown in the dotted line box in figure 7.44) to create a single slot. When two or more
instructions that do not use the multiplier occur between two MAC.L instructions, the stall
caused by multiplier contention between MAC.L instructions is eliminated.
Sometimes consecutive MAC.Ls may have less multiplier contention even when there is
misalignment of instruction execution caused by MA and IF contention. Figure 7.45 illustrates
a case of this type, assuming MA and IF contention.
Other instruction
Other instruction
Third instruction
Figure 7.44 MAC.L Instruction Immediately After Another MAC.L Instruction
......
if
MAC.L
MAC.L
MAC.L
MAC.L
......
......
ID
IF
Figure 7.45 Consecutive MAC.Ls with Misalignment
EX
—
IF
IF
MA
ID
if
ID
ID
IF
IF
MA
EX
—
EX
EX
—
—
mm
MA
MA
MA
—
ID
ID
IF
IF
mm
MA
MA
EX
—
EX
ID
IF
—
ID
IF
mm
M——A mm mm mm
mm
mm
EX
MA WB
MA
—
EX MA WB
ID
ID
mm
mm
mm
EX
EX MA MA mm mm
—
—
M————A mm mm
MA
Rev. 5.00 Jun 30, 2004 page 457 of 512
mm
mm
ID
—
EX —
mm
mm
M————A mm mm mm
—
MA ......
Section 7 Pipeline Operation
mm
—
MA
REJ09B0171-0500O
mm mm
mm mm
: Slot
: Slot
: Slot
mm