HD64F7047F50V Renesas Electronics America, HD64F7047F50V Datasheet - Page 456
HD64F7047F50V
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
-
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Quantity
Price
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Section 7 Pipeline Operation
Multiply/Accumulate Instruction (SH-1 CPU): Includes the following instruction type:
MAC.W
@Rm+, @Rn+
: Slot
Instruction A
IF
ID
EX
MA
MA
mm
mm
Next instruction
IF
—
ID
EX
MA
WB
Third instruction in series
IF
ID
EX
MA
WB
......
Figure 7.23 Multiply/Accumulate Instruction Pipeline
The pipeline has seven stages: IF, ID, EX, MA, MA, mm, and mm. The second MA reads the
memory and accesses the multiplier. mm indicates that the multiplier is operating. mm operates for
two cycles after the final MA ends, regardless of slot. The ID of the instruction after the MAC.W
instruction is stalled for 1 slot. The two MAs of the MAC.W instruction, when they contend with
IF, split the slots as described in Section 7.2.1, Contention between Instruction Fetch (IF) and
Memory Access (MA).
When an instruction that does not use the multiplier comes after the MAC.W instruction, the
MAC.W instruction may be considered to be a five-stage pipeline instruction of IF, ID, EX, MA,
MA. In such cases, the ID of the next instruction simply stalls one slot and thereafter operates like
a normal pipeline. When an instruction that uses the multiplier comes after the MAC.W
instruction, however, contention occurs with the multiplier, so operation is different from normal.
This occurs in the following cases:
1. When a MAC.W instruction is located immediately after another MAC.W instruction
2. When a MULS.W instruction is located immediately after a MAC.W instruction
3. When an STS (register) instruction is located immediately after a MAC.W instruction
4. When an STS.L (memory) instruction is located immediately after a MAC.W instruction
5. When an LDS (register) instruction is located immediately after a MAC.W instruction
6. When an LDS.L (memory) instruction is located immediately after a MAC.W instruction
Rev. 5.00 Jun 30, 2004 page 440 of 512
REJ09B0171-0500O
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