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ELANSC400-66AC 参数 Datasheet PDF下载

ELANSC400-66AC图片预览
型号: ELANSC400-66AC
PDF下载: 下载PDF文件 查看货源
内容描述: 单芯片,低功耗, PC / AT兼容的微控制器 [Single-Chip, Low-Power, PC/AT-Compatible Microcontrollers]
分类和应用: 微控制器PC
文件页数/大小: 132 页 / 2249 K
品牌: AMD [ AMD ]
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(NMIs), wake-ups, or activities for the power manage-  
ment unit. They can also be used as I/O or memory  
chip selects.  
Serial Port  
The ÉlanSC400 and ÉlanSC410 microcontrollers in-  
clude an industry-standard 16550A UART. The UART  
can be used to drive a standard 8-pin serial interface or  
a 2-pin infrared interface. The serial interface and infra-  
red interface signals are available on the ÉlanSC400  
and ÉlanSC410 microcontrollers at all times, though  
only one is available at any given time.  
Infrared Port for Wireless Communication  
The ÉlanSC400 and ÉlanSC410 microcontrollers sup-  
port infrared data transfer. This support consists of  
adding additional transmit and receive serializers as  
well as a controlling state machine and DMA interface  
to the internal UART.  
The UART powers up as a 16450-compatible device. It  
can be switched to and from the FIFO (16550) mode  
under software control. In the FIFO mode, the receive  
and the transmit circuitry are each enhanced by sepa-  
rate 16-byte FIFOs to off-load the CPU from repetitive  
service routines.  
The integrated infrared port includes these features:  
Low-speed mode supports all bit rates from UART,  
up to 115 Kbit/s  
High-speed mode transfers 1.152 Mbit/s using DMA  
The serial port includes the following features:  
Dual PC Card Controller  
(ÉlanSC400 Microcontroller Only)  
Eight-pin interface: serial in, serial out, two modem  
control lines, and four modem status lines  
The PC Card host bus adapter included on the  
ÉlanSC400 microcontroller conforms to PCMCIA Stan-  
dard Release 2.1. It provides support for two sockets,  
each implementing the PC Card memory and I/O inter-  
faces. The PC Card controller is not supported on the  
ÉlanSC410 microcontroller.  
Separately enabled receiver line status, receiver  
data, character timeout, transmitter holding register,  
and modem status interrupts  
Baud-rate generator provides input clock divisor  
from 1 to 65535 to create 16x clock  
5-, 6-, 7-, or 8-bit data  
The PC Card controller includes the following features:  
Even, odd, stick, or no parity generation and  
ExCA-compliant, 82365-register-set compatible  
8-bit and 16-bit data bus  
checking  
1, 1-1/2 or 2 stop-bit generation  
Break generation/detection  
DMA transfers between I/O PC cards and system  
DRAM  
Ten available memory windows, five per socket  
Keyboard Interfaces  
The integrated keyboard controller has the following  
features:  
Of the two PC Card sockets supported, only one is  
available in all modes of operation. The second socket  
is multiplexed with the parallel port and GPIO features.  
Matrix keyboard support with up to 15 rows and 8  
columns  
Register set compatibility with the 82365SL PC Card  
Interface Controller is maintained where features are  
common to both controllers.  
Hardware support for software emulation of the  
System Control Processor (SCP) emulation logic  
Of the ten memory windows available, six are dedi-  
cated to the PC Card controller and four are shared  
with memory mapping system (MMS) Windows C–F.  
XT keyboard interface  
Programmable General-Purpose  
Inputs and Outputs  
Two of the three ROM/Flash memory chip selects can  
be remapped to a PC Card socket via pinstrap or soft-  
ware control. This feature supports reprogramming of  
soldered down Flash memory boot devices and also  
simplifies testing of BIOS/XIP OS code.  
The chip supports several general-purpose I/O signals  
(GPIOs) that can be used on the system board. There  
are two classifications of GPIO available: the GPIOx  
signals, which are programmable as inputs or outputs  
only, and the GPIO_CSx signals.  
Graphics Controller for CGA-Compatible  
Text and Graphics  
(ÉlanSC400 Microcontroller Only)  
The GPIO_CSx signals have many programmable op-  
tions. They can be configured as chip selects. As out-  
puts, these signals are individually programmable to be  
High or Low for the following PMU modes: Hyper, High-  
Speed, Low-Speed, Standby, and Suspend. As inputs,  
they can be programmed to cause System Manage-  
ment Interrupts (SMIs), Non-Maskable Interrupts  
The graphics controller included on the ÉlanSC400 mi-  
crocontroller offers a low-cost integrated graphics solu-  
tion for the mobile terminal market. Integration with the  
main processor and system logic affords the advan-  
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet  
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