參數(shù)資料
型號: PIC10F220EP
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
文件頁數(shù): 15/78頁
文件大?。?/td> 583K
代理商: PIC10F220EP
2006 Microchip Technology Inc.
Preliminary
DS41270B-page 13
PIC10F220/222
4.0
MEMORY ORGANIZATION
The PIC10F220/222 memories are organized into pro-
gram memory and data memory. Data memory banks
are accessed using the File Select Register (FSR).
4.1
Program Memory Organization for
the PIC10F220
The PIC10F220 devices have a 9-bit Program Counter
(PC) capable of addressing a 512 x 12 program
memory space.
Only the first 256 x 12 (0000h-00FFh) for the
PIC10F220
are
physically
Figure 4-1). Accessing a location above these
boundaries will cause a wrap-around within the first
256 x 12 space (PIC10F220). The effective Reset
vector is at 0000h, (see Figure 4-1). Location 00FFh
(PIC10F220) contains the internal clock oscillator
calibration value. This value should never be
overwritten.
implemented
(see
FIGURE 4-1:
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC10F220
4.2
Program Memory Organization for
the PIC10F222
The PIC10F222 devices have a 10-bit Program
Counter (PC) capable of addressing a 1024 x 12
program memory space.
Only the first 512 x 12 (0000h-01FFh) for the Mem-
High are physically implemented (see Figure 4-2).
Accessing a location above these boundaries will
cause a wrap-around within the first 512 x 12 space
(PIC10F222). The effective Reset vector is at 0000h,
(see Figure 4-2). Location 01FFh (PIC10F222) con-
tains the internal clock oscillator calibration value.
This value should never be overwritten.
FIGURE 4-2:
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC10F222
CALL, RETLW
PC<7:0>
Stack Level 1
Stack Level 2
U
S
9
0000h
01FFh
On-chip Program
Memory
Reset Vector
(1)
Note
1:
Address 0000h becomes the
effective Reset vector. Location 00FFh
contains the
MOVLW XX
internal oscillator
calibration value.
256 Word
00FFh
0100h
<8:0>
CALL, RETLW
PC<8:0>
Stack Level 1
Stack Level 2
U
S
10
0000h
02FFh
Reset Vector
(1)
Note
1:
Address 0000h becomes the effective
Reset vector. Location 01FFh contains the
MOVLW XX
internal oscillator calibration
value.
512 Words
01FFh
0200h
On-chip Program
Memory
<9:0>
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