HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 155

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

SH7720 Group, SH7721 Group
• Example 6: Repeat loop consisting of three instructions (extended to the instruction stream
• Example 7: Repeat loop consisting of two instructions (extended to the instruction stream
• Example 8: Repeat loop consisting of one instruction instructions (extended to the instruction
In the DSP mode, the system control instructions (LDC and STC) that handle the RS and RE
registers are extended. The RC[11:0] bits and RF[1:0] bits of the SR can be controlled by the LDC
and STC instructions for the SR register. These instructions should be used if an exception is
enabled during repeat loop execution. The repeat loop can be resumed correctly by storing the RS
and RE register values and RC[11:0] bits and RF[1:0] bits of the SR register before exception
handling and by restoring the stored values after exception handling. However, note that there are
some restrictions on exception acceptance during repeat loop execution. For details refer to
Restrictions on Repeat Loop Control in section 3.3.1, DSP Repeat Control and section 7,
Exception Handling.
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010
RptStart: instr1
RptEnd:
RptStart: instr1
RptEnd:
RptStart:
RptEnd:
shown in example 2, above)
shown in example 3, above)
stream shown in example 4, above)
REPEAT RptStart, RptEnd, #4
instr0
instr2
instr3
REPEAT RptStart, RptEnd, #4
instr0
instr2
REPEAT RptStart, RptEnd, #4
instr0
instr1
;
; [Repeat start instruction]
;
; [Repeat end instruction]
;
; [Repeat start instruction]
; [Repeat end instruction]
;
; [Repeat start instruction]==[Repeat end
instruction]
Section 3 DSP Operating Unit
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