參數(shù)資料
型號(hào)： PIC10F220EOT
廠商： Microchip Technology Inc.
英文描述： 6-Pin, 8-Bit Flash Microcontrollers
中文描述： 6引腳，8位閃存微控制器
文件頁(yè)數(shù)： 21/78頁(yè)
文件大?。?/td> 583K
代理商： PIC10F220EOT
2006 Microchip Technology Inc.
Preliminary
DS41270B-page 19
PIC10F220/222
4.7
Program Counter
As a program instruction is executed, the Program
Counter (PC) will contain the address of the next
program instruction to be executed. The PC value is
increased by one every instruction cycle, unless an
instruction changes the PC.
For a
GOTO
instruction, bits 8:0 of the PC are provided
by the
GOTO
instruction word. The PC Latch (PCL) is
mapped to PC<7:0>.
For a
CALL
instruction or any instruction where the PCL
is the destination, bits 7:0 of the PC again are provided
by the instruction word. However, PC<8> does not
come from the instruction word, but is always cleared
(Figure 4-5).
Instructions where the PCL is the destination or Modify
PCL instructions, include
MOVWF PC
,
ADDWF PC
and
BSF PC
,
5.
FIGURE 4-5:
LOADING OF PC
BRANCH INSTRUCTIONS
4.7.1
EFFECTS OF RESET
The PC is set upon a Reset, which means that the PC
addresses the last location in program memory (i.e.,
the oscillator calibration instruction). After executing
MOVLW XX
, the PC will roll over to location 0000h and
begin executing user code.
4.8
Stack
The PIC10F220 device has a 2-deep, 8-bit wide
hardware PUSH/POP stack.
The PIC10F222 device has a 2-deep, 9-bit wide
hardware PUSH/POP stack.
A
CALL
instruction will PUSH the current value of stack
1 into stack 2 and then PUSH the current PC value,
incremented by one, into stack level 1. If more than two
sequential
CALL
’s are executed, only the most recent
two return addresses are stored.
A
RETLW
instruction will POP the contents of stack level
1 into the PC and then copy stack level 2 contents into
level 1. If more than two sequential
RETLW
’s are exe-
cuted, the stack will be filled with the address
previously stored in level 2.
Note:
Because PC<8> is cleared in the
CALL
instruction or any Modify
PCL
instruction,
all subroutine calls or computed jumps are
limited to the first 256 locations of any
program memory page (512 words long).
PC
8 7
0
PCL
Instruction Word
GOTO
Instruction
CALL
or Modify
PCL
Instruction
PC
8 7
0
PCL
Instruction Word
Reset to ‘
0
’
Note 1:
The W register will be loaded with the lit-
eral value specified in the instruction. This
is particularly useful for the implementa-
tion of data look-up tables within the
program memory.
2:
There are no Status bits to indicate stack
overflows or stack underflow conditions.
3:
There are no instructions mnemonics
called PUSH or POP. These are actions
that occur from the execution of the
CALL
and
RETLW
instructions.
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PIC10F220EP 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:6-Pin, 8-Bit Flash Microcontrollers
PIC10F220-I 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High-Performance Microcontrollers with 8-bit A/D
PIC10F220I/MC 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High-Performance Microcontrollers with 8-bit A/D
PIC10F220-I/MC 功能描述:8位微控制器 -MCU 0.375KB 16B RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC10F220I/OT 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High-Performance Microcontrollers with 8-bit A/D
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