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SN8P2613 Datasheet(PDF) 26 Page - SONiX Technology Company

Part # SN8P2613
Description  8-Bit Micro-Controller
PDF  102 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  SONIX [SONiX Technology Company]
Direct Link  http://www.sonix.com.tw
Logo SONIX - SONiX Technology Company

SN8P2613 Datasheet(HTML) 26 Page - SONiX Technology Company

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SN8P2610 Series
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 26
Version 1.3
2.1.4.4
ACCUMULATOR
The ACC is an 8-bit data register responsible for transferring or manipulating data between ALU and data memory. If
the result of operating is zero (Z) or there is carry (C or DC) occurrence, then these flags will be set to PFLAG register.
ACC is not in data memory (RAM), so ACC can’t be access by “B0MOV” instruction during the instant addressing
mode.
Example: Read and write ACC value.
; Read ACC data and store in BUF data memory.
MOV
BUF, A
; Write a immediate data into ACC.
MOV
A, #0FH
; Write ACC data from BUF data memory.
MOV
A, BUF
; or
B0MOV
A, BUF
The system doesn’t store ACC and PFLAG value when interrupt executed. ACC and PFLAG data must be saved to
other data memories. “PUSH”, “POP” save and load ACC, PFLAG data into buffers.
Example: Protect ACC and working registers.
INT_SERVICE:
PUSH
; Save ACC and PFLAG to buffers.
…
.
…
POP
; Load ACC and PFLAG from buffers.
RETI
; Exit interrupt service vector



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