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ST10F271Z1T3 Datasheet(PDF) 48 Page - STMicroelectronics

Part # ST10F271Z1T3
Description  16-bit MCU with 128 Kbyte Flash memory and 12 Kbyte RAM
PDF  185 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST10F271Z1T3 Datasheet(HTML) 48 Page - STMicroelectronics

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Central processing unit (CPU)
ST10F271Z1
48/185
7.3
MAC co-processor specific instructions
The Table 27 lists the MAC instructions of the ST10F271Z1. The detailed description of
each instruction can be found in the “ST10 Family Programming Manual”. Note that all MAC
instructions are encoded on 4 Bytes.
CALLA, CALLI,
CALLR
Call absolute/indirect/relative subroutine if condition is met
4
CALLS
Call absolute subroutine in any code segment
4
PCALL
Push direct word register onto system stack and call absolute
subroutine
4
TRAP
Call interrupt service routine via immediate trap number
2
PUSH, POP
Push/pop direct word register onto/from system stack
2
SCXT
Push direct word register onto system stack and update register
with word operand
4
RET
Return from intra-segment subroutine
2
RETS
Return from inter-segment subroutine
2
RETP
Return from intra-segment subroutine and pop direct word register
from system stack
2
RETI
Return from interrupt service subroutine
2
SRST
Software reset
4
IDLE
Enter Idle mode
4
PWRDN
Enter power-down mode (supposes NMI-pin being low)
4
SRVWDT
Service watchdog timer
4
DISWDT
Disable watchdog timer
4
EINIT
Signify end-of-initialization on RSTOUT-pin
4
ATOMIC
Begin ATOMIC sequence
2
EXTR
Begin EXTended register sequence
2
EXTP(R)
Begin EXTended page (and register) sequence
2 / 4
EXTS(R)
Begin EXTended segment (and register) sequence
2 / 4
NOP
Null operation
2
Table 26.
Standard instruction set summary (continued)
Mnemonic
Description
Bytes
Table 27.
MAC instruction set summary
Mnemonic
Description
CoABS
Absolute value of the accumulator
CoADD(2)
Addition
CoASHR(rnd)
Accumulator arithmetic shift right & optional round
CoCMP
Compare accumulator with operands



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