HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 132
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
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Section 3 DSP Operating Unit
7. Repeat counter and repeat control
3.3.2
In the repeat control function described in section 3.3.1, Repeat Control Instructions, there are
some restrictions. To reduce these restrictions, this LSI supports the extended repeat instructions
to extend the repeat control function. These extended repeat control instructions were not
supported in the conventional SH-DSP. To keep compatibility with the conventional SH-DSP, use
the conventional repeat control instructions called compatible repeat control instructions.
Program Examples Using the Extended Repeat Control Instructions: Examples of repeat loop
programs using the extended repeat control instructions are shown below.
Rev. 1.00 Dec. 27, 2005 Page 88 of 1044
REJ09B0269-0100
The CPU always executes a program with comparing the repeat end register (RE) and the
program counter (PC). If the PC matches the RE while the RC[11:0] bits of the SR register are
other than 0, the repeat control function is initiated.
If RC ≥ 2, a control is passed to a repeat start instruction after a repeat end instruction has
If RC == 1, the RC is decremented to 0 at the completion of the repeat end instruction and
If RC == 0, the repeat control function is not initiated even if a repeat detection instruction
been executed. The RC is decremented by 1 at the completion of the repeat end instruction.
In this case, restrictions 1 to 6 are also applied.
a control is passed to the subsequent instruction. In this case, restrictions 1 to 6 are also
applied.
is executed. The repeat loop is executed once as normal instructions and a control is not be
passed to a repeat start instruction even if a repeat end instruction is executed.
Extended Repeat Control Instructions
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