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參數資料
| 型號： | W79L532 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件頁數： | 8/77頁 |
| 文件大小： | 523K |
| 代理商： | W79L532 |
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W79E532/W79L532
- 8 -
7. MEMORY ORGANIZATION
The W79E(L)532 separates the memory into two separate sections, the Program Memory and the
Data Memory. The Program Memory is used to store the instruction op-codes, while the Data Memory
is used to store data or for memory mapped devices.
Program Memory
The Program Memory on the standard 8052 can only be addressed to 64 Kbytes long. By invoking the
banking methodology, W79E(L)532 can extend to two 64KB flash EPROM banks, APFlash0 and
APFlash1. There are on-chip ROM banks which can be used similarly to that of the 8052. All
instructions are fetched for execution from this memory area. The MOVC instruction can also access
this memory region. There is an auxiliary 4KB Flash EPROM bank (LDFlash) resided user loader
program for In-System Programming (ISP). Both APFlashs allow serial or parallel download according
to user loader program in LDFlash.
Data Memory
The W79E(L)532 can access up to 64Kbytes of external Data Memory. This memory region is
accessed by the MOVX instructions. Unlike the 8051 derivatives, the W79E(L)532 contains on-chip
1K bytes MOVX SRAM of Data Memory, which can only be accessed by MOVX instructions. These
1K bytes of SRAM are between address 0000H and 03FFH. Access to the on-chip MOVX SRAM is
optional under software control. When enabled by software, any MOVX instruction that uses this area
will go to the on-chip RAM. MOVX addresses greater than 03FFH automatically go to external
memory through Port 0 and 2. When disabled, the 1KB memory area is transparent to the system
memory map. Any MOVX directed to the space between 0000H and FFFFH goes to the expanded
bus on Port 0 and 2. This is the default condition. In addition, the W79E(L)532 has the standard 256
bytes of on-chip Scratchpad RAM. This can be accessed either by direct addressing or by indirect
addressing. There are also some Special Function Registers (SFRs), which can only be accessed by
direct addressing. Since the Scratchpad RAM is only 256 bytes, it can be used only when data
contents are small. In the event that larger data contents are present, two selections can be used.
One is on-chip MOVX SRAM, the other is the external Data Memory. The on-chip MOVX SRAM can
only be accessed by a MOVX instruction, the same as that for external Data Memory. However, the
on-chip RAM has the fastest access times.
0000h
FFFFh
80h
7Fh
00h
64 K
Bytes
External
Data
Memory
Indirect
Addressing
RAM
Direct &
Indirect
Addressing
RAM
SFRs
Direct
Addressing
FFh
64K Bytes
On-chip
Program
Memory
1K Bytes
On-chip SRAM
0000h
03FFh
APFlash0
64K Bytes
On-chip
Program
Memory
APFlash1
0FFFh
4K Bytes
LDFlash
Figure 1. Memory Map
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相關代理商/技術參數 |
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| W79L532A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79L532A25DL | 功能描述:IC MCU 8-BIT 128KB FLASH 40-DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W79 標準包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設備:POR，PWM，溫度傳感器，WDT 輸入/輸出數:21 程序存儲器容量:40KB（20K x 16） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數據轉換器:A/D 6x12b 振蕩器型:內部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| W79L532A25DN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79L532A25FL | 功能描述:IC MCU 8-BIT 128KB FLASH 44-QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W79 標準包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設備:POR，PWM，溫度傳感器，WDT 輸入/輸出數:21 程序存儲器容量:40KB（20K x 16） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數據轉換器:A/D 6x12b 振蕩器型:內部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| W79L532A25FN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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