參數(shù)資料
型號: XE8805AMI028LF
廠商: Semtech
文件頁數(shù): 75/156頁
文件大?。?/td> 0K
描述: IC DAS 16BIT FLASH 8K MTP 64LQFP
標準包裝: 160
系列: XE880x
應(yīng)用: 感測機
核心處理器: Coolrisc816?
程序存儲器類型: 閃存(22 kB)
控制器系列: XE8000
RAM 容量: 512 x 8
接口: UART,USRT
輸入/輸出數(shù): 24
電源電壓: 2.4 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
包裝: 托盤
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
配用: XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
4-2
XE8805/05A
4.1
Memory organisation
The XE8805 CPU is built with a Harvard architecture. The Harvard architecture uses separate instruction and data
memories. The instruction bus and data bus are also separated. The advantage of such a structure is that the CPU
can get a new instruction and read/write data simultaneously. The circuit configuration is shown in Figure 4-1. The
CPU has its 16 internal registers. The instruction memory has a capacity of 8192 22-bit instructions. The data
memory space has 8 low power registers, the peripheral register space and 512 bytes of RAM.
Figure 4-1. Memory mapping
The CPU internal registers are described in the CPU chapter. A short reference of the low power registers and
peripheral registers is given in 4.2.
4.2
Quick reference data memory register map
The data register map is given in the tables below. A more detailed description of the different registers is given in
the detailed description of the different peripherals.
The tables give the following information:
1.
The register name and register address
2.
The different bits in the register
3.
The access mode of the different bits (see Table 4-1 for code description)
4.
The reset source and reset value of the different bits
The reset source coding is given in Table 4-2. To get a full description of the reset sources, please refer to the
reset block chapter.
F F
0h027F
RAM
capacity:
512 bytes
0h0080
0h1FFF
Instruction
memory
capacity:
8k x 22bit
0h0000
CPU
C
P
U
i
nte
rnal
regi
st
ers
a
stat
iph
ipl
i3h
i3l
i2h
i2l
i1h
i1l
i0h
i0l
r3
r2
r1
r0
Low power
RAM
0h0000
0h007F
Peripheral
registers
0h0008
Da
ta
m
em
o
ry
d
ata
bus
in
st
ructi
on
bus
Not
Recommended
for
New
Designs
相關(guān)PDF資料
PDF描述
XE8807AMI026TLF IC MCU LOW PWR MTP FLASH 32-TQFP
XIO2200AGGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XIO2200AZGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XPC823ZT81B2T IC MPU POWERQUICC 81MHZ 256-PBGA
XPC8240RZU250E MCU HOST PROCESSOR 352-TBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XE8805AMI028TLF 制造商:Semtech Corporation 功能描述:
XE8805MI028 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Data Acquisition MCU
XE8806A 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI000 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI026LF 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage