28201234中文资料新唐科技数据手册PDF规格书

2. FEATURES

General Meet LPC Specification 1.1 Support AMD power on sequence Support LDRQ# (LPC DMA), SERIRQ (Serialized IRQ) Integrated hardware monitor functions Support DPM (Device Power Management), ACPI (Advanced Configuration and Power Interface) Programmable configuration settings Single 24-MHz or 48-MHz clock input Support selective pins of 5 V tolerance

UART Two high-speed, 16550-compatible UART with 16-byte send / receive FIFO Support RS485

--- Supports auto flow control Fully programmable serial-interface characteristics:

--- 5, 6, 7 or 8-bit characters

--- Even, odd or no parity bit generation / detection

--- 1, 1.5 or 2 stop-bit generation Internal diagnostic capabilities:

--- Loop-back controls for communications link fault isolation

--- Break, parity, overrun, framing error simulation Programmable baud rate generator allows division of clock source by any value from 1 to (216-1) Maximum baud rate for clock source 14.769 MHz is up to 921K bps. The baud rate at 24 MHz is 1.5 M bps.

Parallel Port Compatible with IBM® parallel port Support PS/2-compatible bi-directional parallel port Support Enhanced Parallel Port (EPP) – Compatible with IEEE 1284 specification Support Extended Capabilities Port (ECP) – Compatible with IEEE 1284 specification Enhanced printer port back-drive current protection

Keyboard Controller 8042-based keyboard controller Asynchronous access to two data registers and one status register Software-compatible with 8042 Support PS/2 mouse Support Port 92 Support both interrupt and polling modes Fast Gate A20 and Hardware Keyboard Reset 12MHz operating frequency