Catalog
Super I/O Controller
Key Features
• + LPC Interface
• + 32 GPIO Pins
• + 100 TQFP Package
• + 3.3V Operating Voltage
• + LPC I/O and DMA Cycles
• + SMBus
• + 1 16C550A Compatible UART
• + 1 Multi-Mode Parallel Port with ChiProtectTM, EPP and ECP
• + ACPI 1.0b/2.0 compatible
• + 480 I/O address location options
• + Serialized IRQ Interface
• + 3 DMA Channels
Description
AI
LPC47N237
is a 3.3V (5V Tolerant) PC99a/PC2001 compliant Docking I/O controller. The
device implements the LPC interface, includes I/O functionality.
LPC47N237’s LPC interface supports LPC I/O and DMA cycles. There is also an
SMBus hosted GPIO Block.
The
legacy I/O included in the LPC47N237 are: a 16C550A compatible UART; one
Multi-Mode parallel port including ChiProtectTM circuitry
plus EPP and ECP. The parallel port is compatible with IBM PC/ATTM architecture,
as well as IEEE 1284, EPP and ECP. LPC47N237 incorporates sophisticated power
control circuitry (PCC) which includes support for PME. PCC supports
multiple low power-down modes. The I/O Address, DMA Channel and hardware
IRQ of each logical device in the LPC47N237 may be reprogrammed through
the internal configuration registers.
**Family parts**LPC47N237-MT