參數(shù)資料
型號(hào): PIC16C505-04
廠商: Microchip Technology Inc.
元件分類(lèi): 8位微控制器
英文描述: 14-Pin, 8-Bit CMOS Microcontroller
中文描述: 14引腳,8位CMOS微控制器
文件頁(yè)數(shù): 11/84頁(yè)
文件大小: 449K
代理商: PIC16C505-04
1998 Microchip Technology Inc.
Preliminary
DS40192B-page 11
PIC16C505
4.0
MEMORY ORGANIZATION
PIC16C505 memory is organized into program mem-
ory and data memory. For the PIC16C505, a paging
scheme is used. Program memory pages are accessed
using one STATUS register bit. Data memory banks
are accessed using the File Select Register (FSR).
4.1
Program Memory Organization
The PIC16C505 devices have a 12-bit Program
Counter (PC).
The 1K x 12 (0000h-03FFh) for the PIC16C505 are
physically
implemented.
Accessing a location above this boundary will cause a
wrap-around within the first 1K x 12 space. The
effective reset vector is at 0000h, (see Figure 4-1).
Location 03FFh contains the internal clock oscillator
calibration value. This value should never be
overwritten.
Refer
to
Figure 4-1.
FIGURE 4-1:
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC16C505
CALL, RETLW
PC<11:0>
Stack Level 1
Stack Level 2
U
S
12
0000h
7FFh
01FFh
0200h
Reset Vector (note 1)
Note 1: Address 0000h becomes the
effective reset vector. Location
03FFh contains the
MOVLW XX
INTERNAL RC oscillator calibration
value.
1024 Words
03FFh
0400h
On-chip Program
Memory
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PIC16C505 14-Pin, 8-Bit CMOS Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,12個(gè)I/O口,帶WDT的微控制器)
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