HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 168
![MPU 1.5/3.3V 0K PB-FREE 256-BGA](/photos/28/61/286175/256-lfbga_sml.jpg)
HD6417712BPV
Manufacturer Part Number
HD6417712BPV
Description
MPU 1.5/3.3V 0K PB-FREE 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH Ethernetr
Datasheet
1.HD6417712BPV.pdf
(980 pages)
Specifications of HD6417712BPV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, FIFO, SCI, SIO
Peripherals
DMA, POR, WDT
Number Of I /o
24
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417712BPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 168 of 980
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Section 3 DSP Operating Unit
Table 3.23 Variation of ALU Integer Operations
Note: The ALU integer operations are basically 24-bit operation, the upper 16 bits of the base
In ALU integer arithmetic operations, the lower word of the source operand is ignored and the
lower word of the destination operand is automatically cleared. The guard-bit parts are effective in
integer arithmetic operations if they are supported. Others are basically the same operation as
ALU fixed-point arithmetic operations. As shown in table 3.23, however, this type of operation
provides two kinds of instructions only, so that the second operand is actually either +1 or –1.
When a word data is loaded into one of the DSP unit’s registers, it is input as an upper word data.
When a register providing guard bits is specified as an operand, the guard bits are also activated.
These operations, as well as fixed-point operations, are executed in the DSP stage, as shown in
figure 3.10. The DSP stage is the same stage as the MA stage in which memory access is
performed.
Every time an ALU arithmetic operation is executed, the DC, N, Z, V, and GT bits in DSR are
basically updated in accordance with the operation result. This is the same as fixed-point
operations but the lower word of each source and destination operand is not used in order to
generate them. See section 3.5.4, ALU Fixed-Point Operations, for details.
In case of a conditional operation, they are not updated even though the specified condition is true
and the operation is executed. In case of an unconditional operation, they are always updated in
accordance with the operation result. See section 3.5.4, ALU Fixed-Point Operations, for details.
• Overflow Protection
Rev. 1.00 Dec. 27, 2005 Page 124 of 1044
REJ09B0269-0100
Mnemonic
PINC
PDEC
The S bit in SR is effective for any ALU integer arithmetic operations in DSP unit. See section
3.5.11, Overflow Protection, for details.
precision and 8 bits of the guard-bits parts. So the signed bit is copied to the guard-bit parts
when a register not providing the guard-bit parts is specified as the source operand. When
a register not providing the guard-bit parts is specified as a destination operand, the upper
word excluding the guard bits of the operation result are input into the destination register.
Function
Increment by 1
Decrement by 1
Source 1
Sx
+1
Sx
–1
Source 2
+1
Sy
–1
Sy
Destination
Dz
Dz
Dz
Dz
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