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SX28AC/DP датащи(PDF) 38 Page - Parallax Inc

номер детали SX28AC/DP
подробное описание детали  Configurable Communications Controllers with EE/Flash Program Memory, In-System Programming Capability and On-Chip Debug
PDF  51 Pages
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производитель  PARALLAX [Parallax Inc]
домашняя страница  https://www.parallax.com/
Logo PARALLAX - Parallax Inc

SX28AC/DP датащи(HTML) 38 Page - Parallax Inc

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Parallax SX20AC/SX28AC
www.parallax.com
© Parallax Inc.
Page 38 of 51
Rev 1.6 11/20/2006
Table 16-5: SX Instruction Set: Program Control Instructions
Mnemonic,
Operands
Description
Clock Cycles
(Slow Mode)
Clock Cycles
(Turbo)
Opcode
Bits
Affected
CALL addr8
Call Subroutine:
Top-of-stack = program counter + 1
PC(7:0) = addr8
Program counter (8) = 0
Program counter (10:9) = PA1:PA0
8
3
1001 kkkk kkkk
none
JMP addr8
Jump to Address:
PC(7:0) = addr9(7:0)
Program counter = (8) = addr9(8)
Program counter (10:9) = PA1:PA0
8
3
101k kkkk kkkk
none
NOP
No Operation
4
1
0000 0000 0000
none
RET
Return from subroutine
(program counter = top-of-stack)
8
3
0000 0000 1100
none
RETP
Return from subroutine across Page boundary
(PA1:PA0 = top-of-stack (10:19) and program
counter = top-of-stack)
8
3
0000 0000 1101
PA1, PA0
RETI
Return from Interrupt (restore W, STATUS, FSR,
and program counter from shadow registers)
8
3
0000 0000 1110
All STATUS
except TO,
PD
RETIW
Return from Interrupt and add W to RTCC
(restore W, STATUS FSR, and program counter
from shadow registers; and add W to RTCC)
8
3
0000 0000 1111
All STATUS
except TO,
PD
RETW lit
Return from Subroutine with Liter in W
(W = lit and program counter = top-of-stack)
8
3
1000 kkkk kkkk
none
Table 16-6: SX Instruction Set: System Control Instructions
Mnemonic,
Operands
Description
Clock Cycles
(Slow Mode)
Clock Cycles
(Turbo)
Opcode
Bits
Affected
BANK addr8
Load Bank number into FSR(7:5)
FSR(7:5) = addr8(7:5)
4
1
0000 0001 1nnn
none
IREAD
Read word from Instruction memory
MODE:W = data at (MODE:W)
16
4
0000 0100 0001
none
PAGE addr12
Load Page number into STATUS(7:5)
STATUS(7:5) = addr12(11:9)
4
1
0000 0001 0nnn
PA1, PA0
SLEEP
Power down mode
WDT = 00h, TO = 1, stop oscillator
(PD = 0, clears prescaler if assigned)
4
1
0000 0000 0011
TO, PD



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