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PDF MCS9865 Data sheet ( Hoja de datos )
| Número de pieza | MCS9865 | |
| Descripción | PCI to Dual Serial and Dual Parallel Controller | |
| Fabricantes | ASIX | |
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MCS9865
PCI to Dual Serial and Dual Parallel Controller
MCS9865
PCI to Dual Serial and Dual Parallel Controller
Datasheet
Revision 2.00
Aug. 5th, 2011
1
Copyright © 2007-2011 ASIX Electronics Corporation. All rights reserved.
1 page  
MCS9865
PCI to Dual Serial and Dual Parallel Controller
1. General Description
MCS9865 is a PCI based Peripheral Controller. It supports dual-channel high performance Serial
Ports, dual enhanced IEEE 1284 compliant parallel ports and an ISA style interface. MCS9865 is
ideally suited for Desktop PC and Notebook applications, such as PCI / Mini-PCI add-in Cards for
high-speed Serial / Parallel Port expansion.
The PCI interface of MCS9865 is fully Compliant with PCI Local Bus Specification, Revision 2.3.
It supports five functions through single device.
On-Chip Serial Ports of MCS9865 support extended 16C550 UART mode and support serial
speeds up to 16Mbps. MCS9865 has 256 byte deep Transmit and Receive FIFO for each UART.
Deep FIFOs enable high serial speeds / throughputs and reduce CPU Utilization. Each Serial Port
is compatible with industry standard 16C550 devices including Standard COM Port of Industrial
PC, ASIX family of UARTs like MCS9901/ MCS9835 / MCS9845 / MCS9820 / MCS7840 /
MCS7820 / MCS7720 / MCS7703.
The Parallel Port interface is an IEEE 1284 compliant SPP / PS2 / EPP / ECP Parallel Port that
fully supports Centronics interface.
ISA Style interface is designed to add additional Serial / Parallel Ports by using external ISA
peripherals. ISA interface can be used to achieve additional Serial / Parallel port expansions.
Following IO expansions can be supported through MCS9865 ISA interface :
• 1 to 4 Serial
• 1 Serial + 1 Parallel
• 2 Serial + 1 Parallel
• 2 Parallel
MCS9865 has 4 mode select pins. These pins can be bonded at system level for following
product configurations:
• PCI to 1 Serial
• PCI to 2 Serial + 1 Parallel
• PCI to 2 Serial + ISA
• PCI to 1 Parallel
• PCI to 2 Parallel
When ISA mode is selected, MCS9865 assumes the presence of an external “ISA to 4 Serial”
peripheral on the ISA interface as default configuration and this combination can be supported
without an external EEPROM. External EEPROM is needed for other ISA based Serial/Parallel
combinations.
Many Serial, Parallel Port product configurations can be supported by using external EEPROM.
Refer to Section 16 for details.
5
Copyright © 2007-2011 ASIX Electronics Corporation. All rights reserved.
5 Page 
MCS9865
PCI to Dual Serial and Dual Parallel Controller
10.3 Pin Out Diagram : 1SP
11
Copyright © 2007-2011 ASIX Electronics Corporation. All rights reserved.
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MCS9865.PDF ] | |
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