參數(shù)資料
型號(hào): UPSD3233BV-40U1T
廠商: 意法半導(dǎo)體
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
中文描述: 閃存可編程系統(tǒng)設(shè)備與8032微控制器核心和64Kbit SRAM的
文件頁(yè)數(shù): 17/176頁(yè)
文件大?。?/td> 1081K
代理商: UPSD3233BV-40U1T
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μ
PSD323X
ARCHITECTURE OVERVIEW
Memory Organization
The
μ
PSD323X Devices’s standard 8032 Core
has separate 64KB address spaces for Program
memory and Data Memory. Program memory is
where the 8032 executes instructions from. Data
memory is used to hold data variables. Flash
memory can be mapped in either program or data
space. The Flash memory consists of two flash
memory blocks: the main Flash (1 or 2Mbit) and
the Secondary Flash (256Kbit). Except during
flash memory programming or update, Flash
memory can only be read, not written to. A Page
Register is used to access memory beyond the
64K bytes address space. Refer to the PSD Mod-
ule for details on mapping of the Flash memory.
The 8032 core has two types of data memory (in-
ternal and external) that can be read and written.
The internal SRAM consists of 256 bytes, and in-
cludes the stack area.
The SFR (Special Function Registers) occupies
the upper 128 bytes ofthe internal SRAM, thereg-
isters can be accessed by Direct addressing only.
There are two separate blocks of external SRAM
inside the
μ
PSD323X Devices: one 256 bytes
block is assigned for DDC data storage. Another
8K bytes resides in the PSD Module that can be
mapped toanyaddressspace defined by theuser.
Figure 5. Memory Map and Address Space
Registers
The 8032 has severalregisters; these are the Pro-
gram Counter (PC), Accumulator (A), B Register
(B), the Stack Pointer (SP), the Program Status
Word (PSW), General purpose registers (R0 to
R7), and DPTR (Data Pointer register).
Figure 6. 8032 MCU Registers
AI06635
SECONDARY
FLASH
FLASH
MAIN
32KB
128KB
OR
256KB
FF
7F
0
FFFF
(DDC)
8KB
256B
INT. RAM
EXT. RAM
EXT. RAM
Addressing
Indirect
Indirect
Direct
Addressing
or
Addressing
Direct
SFR
Internal RAM
Space
(256 Bytes)
FF00
External RAM
Space
(MOVX)
Flash Memory Space
AI06636
Accumulator
B Register
Stack Pointer
Program Counter
Program Status Word
General
Purpose
Register (Bank0-3)
Data Pointer Register
PCH
DPTR(DPH)
A
B
SP
PCL
PSW
R0-R7
DPTR(DPL)
相關(guān)PDF資料
PDF描述
uPSD3233 Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
uPSD3234(中文) Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
uPSD3212C(中文) Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(帶8032微控制器內(nèi)核和16Kbit SRAM的FLASH可編程系統(tǒng)器件)
uPSD3254A(中文) Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的FLASH可編程系統(tǒng)器件)
uPSD3254BV(中文) Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的FLASH可編程系統(tǒng)器件)
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