收藏本站
2010 Microchip Technology Inc.
DS70141F-page 31
dsPIC30F3010/3011
FIGURE 3-5:
DATA SPACE WINDOW INTO PROGRAM SPACE OPERATION
3.2
Data Address Space
The core has two data spaces. The data spaces can be
considered either separate (for some DSP instruc-
tions), or as one unified linear address range (for MCU
instructions). The data spaces are accessed using two
Address Generation Units (AGUs) and separate data
paths.
3.2.1
DATA SPACE MEMORY MAP
The data space memory is split into two blocks, X and
Y data space. A key element of this architecture is that
Y space is a subset of X space, and is fully contained
within X space. In order to provide an apparent linear
addressing space, X and Y spaces have contiguous
addresses.
When executing any instruction other than one of the
MAC
class of instructions, the X block consists of the
64 Kbyte
data
address
space
(including
all
Y
addresses). When executing one of the MAC class of
instructions, the X block consists of the 64 Kbyte data
address space excluding the Y address block (for data
reads only). In other words, all other instructions regard
the entire data memory as one composite address
space. The MAC class instructions extract the Y
address space from data space and address it using
EAs sourced from W10 and W11. The remaining X data
space is addressed using W8 and W9. Both address
spaces are concurrently accessed only with the MAC
class instructions.
A data space memory map is shown in Figure 3-6.
Figure 3-7 shows a graphical summary of how X and Y
data spaces are accessed for MCU and DSP
instructions.
23
15
0
PSVPAG(1)
15
EA<15> = 0
EA<15> = 1
16
Data
Space
EA
Data Space
Program Space
8
15
23
0x0000
0x8000
0xFFFF
0x00
0x003FFE
Data Read
Upper half of Data
Space is mapped
into Program Space
Note: PSVPAG is an 8-bit register, containing bits<22:15> of the program space address
(i.e., it defines the page in program space to which the upper half of data space is being mapped).
0x001200
Address
Concatenation
BSET
CORCON,#2
; PSV bit set
MOV
#0x00, W0
; Set PSVPAG register
MOV
W0, PSVPAG
MOV
0x9200, W0
; Access program memory location
; using a data space access
0x000100
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PIC18F4321T-I/ML IC PIC MCU FLASH 4KX16 44QFN
PIC18F4221T-I/ML IC PIC MCU FLASH 2KX16 44QFN
PIC18F2321T-I/ML IC PIC MCU FLASH 4KX16 28QFN
PIC18F2221T-I/SO IC PIC MCU FLASH 2KX16 28SOIC
PIC16LF1939-I/MV IC MCU 8BIT 28KB FLASH 40-UQFN
PIC24F16KL402-I/SP IC MCU 16BIT 16KB FLASH 28-SPDIP
PIC18F24J11-I/SS IC PIC MCU FLASH 16K 2V 28-SSOP
PIC24F16KA101-I/SO IC PIC MCU FLASH 16K 20-SOIC
相关代理商/技术参数
PIC18F4450T-I/PT 功能描述:8位微控制器 -MCU 16KB FL 768 RAM 34 I/O FS-USB 2.0 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455-BL 制造商:POWERLITE SYSTEMS 功能描述:PIC18F445 W/ BOOTLOADER FOR FLASHLAB 制造商:POWERLITE SYSTEMS 功能描述:PIC18F445 W/ BOOTLOADER, FOR FLASHLAB 制造商:POWERLITE SYSTEMS 功能描述:PIC18F445 W/ BOOTLOADER, FOR FLASHLAB; Silicon Manufacturer:Powerlite Systems; Core Architecture:PIC; Kit Contents:Board; Features:Bootloader Programming, RS232 Connector for Boot-Loading and Serial Comms ;RoHS Compliant: Yes
PIC18F4455-I/ML 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455-I/P 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455-I/PT 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455T-I/ML 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4455T-I/PT 功能描述:8位微控制器 -MCU 24kBF 2048RM FSUSB2 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F4458-I/ML 功能描述:8位微控制器 -MCU 24KB Flash 2KB RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT