- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362657 > ELANSC300-25VC (ADVANCED MICRO DEVICES INC) Highly Integrated, Low-Power, 32-Bit Microcontroller PDF資料下載
參數(shù)資料
| 型號(hào)： | ELANSC300-25VC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| 中文描述： | 32-BIT, 25 MHz, MICROCONTROLLER, PQFP208 |
| 封裝： | TQFP-208 |
| 文件頁(yè)數(shù)： | 62/139頁(yè) |
| 文件大小： | 1388K |
| 代理商： | ELANSC300-25VC |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)當(dāng)前第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)
62
élanSC300 Microcontroller Data Sheet
P R E L I M I N A R Y
Parallel Port Anomalies
General
The élanSC300 microcontroller parallel port can be
physically mapped to three different I/O locations or
can be completely disabled. These I/O locations are
3B(x)h, 37(x)h, and 27(x)h. Typically the system BIOS
or a software driver sets up the port at system boot
time. Generally, LPT1 is set up by software to be asso-
ciated with IRQ7, and LPT2 (and LPT3 if desired) is set
up to be associated with IRQ5. In the élanSC300 mi-
crocontroller, the parallel port is always associated with
IRQ7. This cannot be changed regardless of the
I/O location to which the parallel port is mapped.
Local Bus or Maximum ISA Configuration
When the élanSC300 microcontroller is configured for
some bus mode other than the internal CGA controller
option, the system BIOS should disable the internal
video controller at boot time. This is done by setting bit
5 of the Screen Control Register 2, Index 19h in the
CGA Index address space.
Control Register 1, Index 20h in the CGA Index ad-
dress space, controls the parallel port mapping. When
the internal CGA controller is disabled, Control Regis-
ter 1 cannot be accessed until the part is reset. There-
fore, once the internal CGA controller has been
disabled, the parallel port cannot be remapped. This
can cause the system boot sequence to require modi-
fication such that the parallel port is set up prior to the
disabling of the internal video controller. In addition,
any software driver or setup utility which was loaded
after the internal video controller was disabled would
not have the ability to remap the parallel port location if
it was required. For more information about parallel
ports, see Chapter 4 of the élan
TM
SC300 Microcontrol-
ler Programmer’s Reference Manual
, order #18470.
PC/AT Support Features
The élanSC300 microcontroller provides all of the sup-
port functions found in the original PC/AT. These in-
clude the Port B status and control bits, speaker
control, extensions for fast reset, and A20 gate control.
(Fast CPU reset and fast A20 gate functions are con-
trolled by either the Miscellaneous 1 Register, Index
6Fh, or port 92h). For more information, see Chapter 4
of the élan
TM
SC300 Microcontroller Programmer’s
Reference Manual
, order #18470.
The élanSC300 microcontroller also includes support
for port B, and a miscellaneous PC/AT register that al-
lows direct programming of the speaker via the SPK
line. In addition, the élanSC300 microcontroller also
generates a chip select and clock source for an exter-
nal, standard 8042 keyboard controller or the PC/XT
keyboard feature. For more information, see Appendix
B of the élan
TM
SC300 Microcontroller Programmer’s
Reference Manual
, order #18470.
Port B and NMI Control
Port B is a PC/AT-standard miscellaneous feature con-
trol register that is located at I/O address 061h. The
373 Octal D Transparent Latch
SD7–SD0
Parallel Port
Data Bus
D
Q
EN
OE
PPOEN
IOW
IOR
244 type buffer
Y
A
ENB
PPDCS
Figure 6.
The élanSC300 CPU Bidirectional Parallel Port and EPP Implementation
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ELANSC300-25VI | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| ELANSC300-33VI | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| ELANSC400-100AI | Single-Chip, Low-Power, PC/AT-Compatible Microcontrollers |
| ELANSC400-33AC | Single-Chip, Low-Power, PC/AT-Compatible Microcontrollers |
| ELANSC400-33AI | Single-Chip, Low-Power, PC/AT-Compatible Microcontrollers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ELANSC300-25VI | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller |
| ELANSC300-33KC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller |
| ELANSC300-33KI | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller |
| ELANSC300-33VC | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Advanced Micro Devices 功能描述: 制造商:AMD 功能描述: |
| ELANSC300-33VI | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。