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參數(shù)資料
| 型號： | MCV14AI/P |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDIP14 |
| 封裝： | 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-14 |
| 文件頁數(shù)： | 5/84頁 |
| 文件大?。?/td> | 1007K |
| 代理商： | MCV14AI/P |
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2009 Microchip Technology Inc.
Preliminary
DS41338B-page 11
MCV14A
3.0
MEMORY ORGANIZATION
The MCV14A memories are organized into program
memory and data memory (SRAM).The self-writable
portion of the program memory called Flash data mem-
ory is located at addresses at 400h-43Fh. All Program
mode commands that work on the normal Flash mem-
ory work on the Flash data memory. This includes bulk
erase, row/column/cycling toggles, Load and Read
data commands (Refer to Section 4.0 “Flash Data
Memory” for more details). For devices with more than
512 bytes of program memory, a paging scheme is
used. Program memory pages are accessed using one
STATUS register bit. For the MCV14A, with data mem-
ory register files of more than 32 registers, a banking
scheme is used. Data memory banks are accessed
using the File Select Register (FSR).
3.1
Program Memory Organization for
the MCV14A
The MCV14A device has an 11-bit Program Counter
(PC) capable of addressing a 2K x 12 program memory
space. Program memory is partitioned into user memory,
data memory and configuration memory spaces.
The user memory space is the on-chip user program
memory. As shown in Figure 3-1, it extends from 0x000
to 0x3FF and partitions into pages, including Reset
vector at address 0x3FF.
The data memory space is the Flash data memory
block and is located at addresses PC = 400h-43Fh. All
Program mode commands that work on the normal
Flash memory work on the Flash data memory block.
This includes bulk erase, Load and Read data
commands.
The Configuration Memory Space extends from 0x440
to 0x7FF. Locations from 0x448 through 0x49F are
reserved. The User I.D. locations extend from 0x440
through 0x443. The Backup OSCCAL locations extend
from 0x444 through 0x447. The Configuration Word is
physically located at 0x7FF.
FIGURE 3-1:
MEMORY MAP
000h
1FFh
Reset Vector
On-chip User
Program
Memory (Page 0)
200h
3FFh
3FEh
User ID Locations
Reserved
Configuration Word
400h
443h
444h
7FEh
7FFh
43Fh
440h
Unimplemented
On-chip User
Program
Memory (Page 1)
Dat
a
Mem
o
ry
Flash Data Memory
448h
49Fh
Backup OSCCAL
Locations
447h
4A0h
Conf
igur
at
ion
Mem
o
ry
Sp
a
c
e
Sp
a
c
e
User
M
e
mory
Sp
a
c
e
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MCV15/10-GF-381 | 制造商:Phoenix Contact 功能描述:HEADER PCB VERTICAL 3.81MM 10WAY |
| MCV15/2-GF-381 | 制造商:Phoenix Contact 功能描述:HEADER PCB VERTICAL 3.81MM 2WAY |
| MCV15/3-GF-381 | 制造商:Phoenix Contact 功能描述:HEADER PCB VERTICAL 3.81MM 3WAY |
| MCV15/4-GF-381 | 制造商:Phoenix Contact 功能描述:HEADER PCB VERTICAL 3.81MM 4WAY |
| MCV15/5-GF-381 | 制造商:Phoenix Contact 功能描述:HEADER PCB VERTICAL 3.81MM 5WAY |
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