M5123 Datasheet, PDF (1/121 Pages) List of Unclassifed Manufacturers – Mega I/O Controller with Plug & Play

Acer Laboratories Inc.
M512x : Mega I/O Controller with PnP
--Preliminary, Confidential, Proprietary--
M512x : Mega I/O Controller with Plug & Play
• Supports Windows 95 Plug and Play
• Supports 2 serial/1 parallel/FDC/RTC/KB and PS/2 mouse functions
• Supports 22 General Purpose I/O pins
• Enhanced ESD/LATCH up to over 4KV/300 mA
• Supports SPP, PS/2, EPP, ECP and 1284 compliance
• Supports 5 GPIO Alternative function pins for Remote Control
• Supports IR via UART1, UART2 and two additional IR pins
• Supports Fast Gate A20 and RC functions
• Supports KBC and RTC enable/disable functions
• Single-chip Notebook/Desktop solution
FEATURES
n Supports Windows 95 Plug-and-Play
n Supports 2 Serial / 1 Parallel / FDC / RTC / KB / PS/2
Mouse functions
n Supports 22 General Purpose I/O pins
- 3 GPIO ports (Ports 1, 2, 3)
- 5 GPIO-ALT function pins for Remote Control (Pins 30-34)
- 2 General Purpose chip select pins (Pins 24-25)
- Supports I²C Control Pins
n 2.88 MB Floppy Disk Controller
- Software compatible with 82077 and supports 16-byte
data FIFOs
- High performance internal data separator
- Supports standard 1 Mbps / 500 Kbps / 300 Kbps / 250
Kbps data rate
- Supports 3 modes of 3.5" FDD (720K/1.2M/1.44MB)
- Swappable drives A and B
n Supports FDC through Parallel Port pins
n Supports AT PS/2 KB and PS/2 Mouse
n Built-in Keyboard Controller and Real Time Clock
n Various modes of Parallel Port
Supports ECP/ EPP / PS/2 / SPP and 1284 Compliance
- IBM PC/XT, PC/AT and PS/2 compatible Bi-directional
parallel port
- Enhanced Parallel Port (EPP) compatible
- Microsoft and Hewlett Packard Extended Capabilities Port
(ECP) compatible
n Serial ports
- Two high performance 16550 compatible UARTs with
send/receive 16-byte FIFOs
- Serial Infra Red (SIR) for wireless communications
- MIDI (Musical Instrument Digital Interface) compatible
n High performance Power Management for FDC, UART
and Parallel Port
n Supports XD-To-SD Bus Buffer and Control Pins
n Supports Enable/Disable KBC and RTC
n Supports Fast Gate A20 and RC function
n Supports External KBC programming pin functions
n Supports additional IrDA and ASK IR Pins
n Supports Phoenix KBC (M5123), AMI KBC(M5125)
n 160-pin PQFP package
07-02-1997 Document Number: 512xDS02.doc
Acer Labs: 7F, 115 Tung Hsing Street, Taipei 110, Taiwan, R.O.C. Tel: [phone] Fax: [phone]
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