 |
Datenblatt-Suchmaschine für elektronische Bauteile |
|
|
Datenblatt-Suchmaschine für elektronische Bauteile |
|
SH7708 Datenblatt(PDF) 68 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
SH7708 Datenblatt(HTML) 68 Page - Renesas Technology Corp |
|
|
68 / 633 page  50 2.6 Usage Note In the SH7708R, operations may not be performed correctly when the following sequences are executed with the cache on. Address Instruction 4n MAC.L (or MAC.W, DMULS.L, DMULU.L, MUL.L) 4n+2 MAC.L (or MAC.W, DMULS.L, DMULU.L, MUL.L) 4n+4 STS(.L)/LDS(.L) MACH/MACL or 4n+2 MAC.L (or MAC.W, DMULS.L, DMULU.L, MUL.L) 4n+4 NOP (or one-cycle instruction except MAC instruction* 1 or branch instruction* 2) 4n+6 MAC.L (or MAC.W, DMULS.L, DMULU.L, MUL.L) 4n+8 STS(.L)/LDS(.L) MACH/MACL Notes: 1. MULS.W, MULU.W, MAC.L, MAC.W, DMULS.L, DMULU.L, MUL.L, MULS.W, MULU.W 2. BF, BF/S, BT, BT/S, BRA, BRAF, BSR, BSRF, JMP, JSR, RTS Software Remedy: This problem can be avoided in either of the following ways. 1. Do not use the above sequences. 2. When performing STS/LDS on the MACL/MACH register after consecutive execution of MAC instructions, insert an NOP instruction between the MAC instructions and STS/LDS instruction. |
|
Link URL |
| War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Link zum Datenblatt | Linktausch | Hersteller All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
German ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
