HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 178
HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417641.pdf
(1036 pages)
- Current page: 178 of 1036
- Download datasheet (5Mb)
Section 3 DSP Operation
Note 1: Actual Implementation
Repeat start and repeat end registers, RS and RE, specify the repeat start instruction and repeat end
instruction. The actual addresses that are kept in these registers depend on the number of
instructions in the repeat loop. The rule is as follows:
Repeat_Start:
Repeat_Start0:
Repeat_End3:
Table 3.17 RS and RE Setting Rule
Rev. 4.00 Sep. 14, 2005 Page 128 of 982
REJ09B0023-0400
RS
RE
RC > 1 :
1. 1 repeated step
4. 4 repeated steps
Start(End):
Start:
End:
RC = 0 :
Acceptable for any interrupts
A: Acceptable for any interrupts
B and C: Acceptable for some interrupts
1
Repeat_start0 + 8
Repeat_start0 + 4
_
Figure 3.18 Restriction of Interrupt Acceptance in Repeat Loop
instr – 1
instr0
instr1
instr2
instr – 1
instr0
instr1
instr2
instr3
instr4
instr4
An address of the instruction at the repeat top
An address of the instruction before one instruction at the repeat top
An address of the instruction before three instructions at the repeat bottom
; A
; B
; C
; A
; A
; A
; B
; C
; C
; C
; A
2
Repeat_start0 + 6
Repeat_start0 + 4
Number of Instructions in Repeat Loop
Start:
End:
2. 2 repeated steps
5. 5 or more repeated steps
Start:
End:
instr – 1
instr0
instr1
instr n – 3
instr n – 2
instr n – 1
instr n
instr n + 1
instr – 1
instr0
instr1
instr2
instr3
:
:
3
Repeat_start0 + 4
Repeat_start0 + 4
; A
; B
; C
; C
; A
; A
; A
; A
; B
; C
; C
; C
; A
Start:
End:
3. 3 repeated steps
≥4
Repeat_start
Repeat_End3 + 4
instr – 1
instr0
instr1
instr2
instr3
instr4
; A
; B
; C
; C
; C
; A
Related parts for HD6417641
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
RENESAS MCU
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet:
Part Number:
Description:
Renesas 32-Bit RISC Microcomputer
Manufacturer:
RENESAS [Renesas Technology Corp]
Datasheet: