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TMS320F Datasheet(PDF) 188 Page - Texas Instruments

Part # TMS320F
Description  CPU and Instruction Set
PDF  389 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320F Datasheet(HTML) 188 Page - Texas Instruments

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LST
Load Status Register
7-88
Cycles for a Repeat (RPT) Execution of an LST Instruction
Program
Operand
ROM
DARAM
SARAM
External
DARAM
2n
2n
2n
2n+pcode
SARAM
2n
2n
2n, 2n+1†
2n+pcode
External
2n+ndsrc
2n+ndsrc
2n+ndsrc
2n+1+ndsrc+pcode
† If the operand and the code are in the same SARAM block
Example 1
MAR
*,AR0
LST
#0,*,AR1
;The data memory word addressed by the
;contents of auxiliary register AR0 is
;loaded into status register ST0,except
;for the INTM bit. Note that even
;though a next ARP value is specified,
;that value is ignored. Also note that
;the old ARP is not loaded into the
;ARB.
Example 2
LST
#0,60h
;(DP = 0)
Before Instruction
After Instruction
Data Memory
Data Memory
60h
2404h
60h
2404h
ST0
6E00h
ST0
2604h
ST1
05ECh
ST1
05ECh
Example 3
LST
#0,*–,AR1
Before Instruction
After Instruction
ARP
4
ARP
7
AR4
3FFh
AR4
3FEh
Data Memory
Data Memory
3FFh
EE04h
3FFh
EE04h
ST0
EE00h
ST0
EE04h
ST1
F7ECh
ST1
F7ECh



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