PC87338 Datasheet | National Semiconductor

PC87338/PC97338 ACPI 1.0 and PC98/99 pliant Super I/O November 1998 PC87338/PC97338 ACPI 1.0 and PC98/99 pliant Super I/O General Description The PC97338 is a fully ACPI 1.0 and PC98/99 pliant, ISA based Super I/O. It is functionally patible with the PC87338. It includes a Floppy Disk Controller (FDC), two Serial munication Controllers (SCC) for UART and Infrared support, one IEEE1284 patible Parallel Port, and two general purpose Chip Select signals for game port support. The device supports power management as well as 3.3V and 5V mixed operation making it particularly suitable for notebook and sub-notebook applications. The PC87338 and PC97338 are fully pliant to the Plug and Play specifications included in the "Hardware Design Guide for Microsoft Windows 95". Differences between the PC87338 and PC97338 are indicated in italics. These differences are summarized in Appendix A. Features s Meets ACPI 1.0 and PC98/99 requirements s Backward patible with PC87338 s 100% patibility with Plug and Play requirements specified in the “Hardware Design Guide for Microsoft Windows 95”, ISA, EISA, and Micro Channel architectures s A special Plug and Play module includes: - Flexible IRQs, DMAs and base addresses - General Interrupt Requests (IRQs) that can be multiplexed to the ten supported IRQs Block Diagram CS1,0 Configuration Input Signals Serial Interface Serial Fast IR Interface Interface General Chip Select Configuration Registers Interrupt and DMA SCC1 (16550 UART) SCC2 (16550 UART + INFRARED) Microprocessor Address Data and Control Plug and Play Support Power Down Logic IEEE1284 Parallel Port High Current Driver Floppy Disk Controller (FDC) with Digital Data Separator (DDS) Floppy Drive Interface (Enhanced 8477) Floppy Drive Interface DMA IRQ IRQ Input Channels Signals Control Data Handshake TRI-STATE® is a registered trademark of National Semiconductor Corporation. IBM® , Micro Channel®, PC-AT® and PS/2® are registered trademarks of...