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MCS9865
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, MosChip 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 of Data Sheet for details.
Features
PCI
- Fully compliant with PCI Local Bus Specification, Revision 2.3.
- Fully customizable PCI Configuration Space.
- Compatible with 3.3V and 5V PCI signaling.
- Supports PCI Power Management.
Serial Port
- Four 16C 450 / 550 / Extended 550 compatible UARTs
- Supports RS232, RS485 & RS422 modes.
- Bi-directional Speeds from 50 bps to 16 Mbps / Port
- Full Serial modem control.
- Supports Hardware, Software flow control.
- 5, 6, 7, 8, 9-bit Serial format support.
- Even, Odd, None, Space & Mark parity supported.
- Custom BAUD rate support with external clock / by
programming internal PLL.
- On Chip deep 256 Byte FIFOs in Transmit & Receive paths of each Serial Port.
- Supports remote wakeup and power management features.
- Serial Port transceiver shutdown support.
- Supports Slow IrDA on all Serial Ports.
IEEE1284 Parallel Port
- Multi-mode IEEE1284 compliant controller (SPP, PS2, EPP, ECP)
- Faster data rates up to 1.5M bytes/sec for parallel port.
ISA
- ISA style I/O interface for extending UARTs & Parallel Ports
- 8 bit data bus @ 8Mhz.
Miscellaneous
- On-Chip Dual Voltage Regulator (5V to 3.3V & 1.8V).
- Two-Wire I2C Interface for EEPROM.
- EEPROM read / write through PCI.
- Four bi-directional multi-function GPIO lines.
- On chip oscillator.
Applications
- Serial Attached Devices
- Serial Networking / Monitoring Equipment
- Data Acquisition System
- POS Terminal & Industrial PC
- Parallel / Printer Port based applications
- Add-On I/O Cards - Serial / Parallel / USB
- Embedded systems - For I/O expansion
Ordering Information
- Part Number : MCS9865IV-AA.
- 128 Pin LQFP, ROHS.
- Industrial Grade, -40 to +85 o C.
- Commercial Grade, 0 to 70 deg C.
Application Schematic
- PCI to 2S + 1 Parallel.
- PCI to 6S (2S + ISA - 4S).
- PCI to 1P.
- PCI to 1S.
- PCI to 2P.
- PCI to 4S + 1P (2S + ISA - 2S1P).
- PCI to 2S + 2P (2S + ISA - 2P).
Evaluation Board
Software Support
SW Driver Support
- Windows XP based EEPROM Utility.
- Windows 32bit 2000 / XP / 2003 Server.
- Windows 64bit XP / 2003 Server.
- Windows Vista 32 & 64bit.
- Linux Kernel 2.6.14 & above.
SW Utility Support
- Windows XP based EEPROM Utility.
- Windows XP based Diagnostic Utility.
- DoS based Diagnostic Utility.
Certifications
- WHQL Certification for Win XP / Vista device drivers.
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