PC87309  Product Folder

The PC87309VLJ is a single-chip solution to the most commonly used ISA, EISA and MicroChannel® peripherals in a compact, 100-pin VLJ packaging. This fully Plug and Play (PnP) and PC97 compatible chip conforms to the Plug and Play ISA Specification Version 1.0a, May 5, 1994, and meets specifications defined in the PC97 Hardware Design Guide.

The PC87309VUL incorporates: a Floppy Disk Controller (FDC), a Mouse and Keyboard Controller (KBC), two enhanced UARTs with Infrared (IR) support, a full IEEE 1284 parallel port and support for Power Management (PM). The chip also provides a separate configuration register set for each module.

The Infrared (IR) interface complies with the HP-SIR and SHARP-IR standards, and supports all four basic protocols for Consumer Remote Control circuitry (RC-5, RC-6, NEC, RCA and RECS 80).

For flexible UART and IR support, the PC87309VLJ offers two operation modes:

• Mode 1: Full-IR Mode
  UART1 works as UART; UART2 works as fully IR-compliant device
• Mode 2: Two-UART Mode
  Either both UARTs work as UARTs, or UART1 works as UART and UART2 works as partially IR-compliant device, providing only IRRX and IRTX support

• Full SuperI/O functionality in compact, cost-effective 100-pin VLJ packaging
• PC97 compliant

• 100% compatibility with PnP requirements specified in the "Plug and Play ISA Specification", PC97, ISA, EISA, and MicroChannel architectures
• A special PnP module that includes:
• Flexible IRQs, DMAs and base addresses that meet the PnP requirements specified by Microsoft® in their 1995 hardware design guide for Windows® and PnP ISA Revision 1.0A
• PnP ISA mode (with isolation mechanism - Wait for Key state Motherboard PnP mode
• A Floppy Disk Controller (FDC) that provides:
• A modifiable address that is referenced by a 12-bit programmable register
• Software compatibility with the PC8477, which contains a superset of the floppy disk controller functions in the µDP8473, the NEC µPD765A and the N82077
• 7 IRQ channel options
• Three 8-bit DMA channel options
• 16-byte FIFO
• Burst and non-burst modes
• A new high-performance, on-chip, digital data separator that does not require any external filter components
• Support for standard 5.25" and 3.5" floppy disk drives
• Perpendicular recording drive support
• Three-mode Floppy Disk Drive (FDD) support
• Full support for the IBM Tape Drive Register (TDR) implementation of AT and PS/2 drive types
• A Keyboard and mouse Controller (KBC) with:
• A modifiable address that is referenced by a 12-bit programmable register, reported as a fixed address in resource data
• 7 IRQ options for the keyboard controller
• 7 IRQ options for the mouse controller
• An 8-bit microcontroller
• Software compatibility with the 8042AH and PC87911 microcontrollers
• 2 KB of custom-designed program ROM
• 256 bytes of RAM for data
• Three programmable dedicated open drain I/O lines for keyboard controller applications
• Asynchronous access to two data registers and one status register during normal operation
• Support for both interrupt and polling
• 93 instructions
• An 8-bit timer/counter
• Support for binary and BCD arithmetic
• Operation at 8 MHz,12 MHz or 16 MHz (programmable option)
• Customizing by using the PC87323VUL, which includes a RAM-based KBC, as a development platform for keyboard controller code for the PC87309VLJ
• Two UARTs that provide:
• Software compatibility with the 16550A and the 16450
• A modifiable address that is referenced by a 12-bit programmable register
• 7 IRQ channel options
• Shadow register support for write-only bit monitoring
• UART data rates up to 1.5 Mbaud
• An enhanced UART and Infrared (IR) interface on the UART2 that supports:
• HP-SIR
• ASK-IR option of SHARP-IR
• DASK-IR option of SHARP-IR
• Consumer Remote Control circuitry
• A PnP compatible external transceiver
• Three 8-bit DMA options for the UART with Slow Infrared support (UART2)
• A bidirectional parallel port that includes:
• A modifiable address that is referenced by a 12-bit programmable register
• Software or hardware control
• 7 IRQ channel options
• Three 8-bit DMA channel options
• Demand mode DMA support
• An Enhanced Parallel Port (EPP) that is compatible with the new version EPP 1.9, and is IEEE 1284 compliant
• An Enhanced Parallel Port (EPP) that also supports version EPP 1.7 of the Xircom specification.
• Support for an Enhanced Parallel Port (EPP) as mode 4 of the Extended Capabilities Port (ECP)
• An Extended Capabilities Port (ECP) that is IEEE 1284 compliant, including level 2
• Selection of internal pull-up or pull-down resistor for Paper End (PE) pin
• Reduction of PCI bus utilization by supporting a demand DMA mode mechanism and a DMA fairness mechanism
• A protection circuit that prevents damage to the parallel port when a printer connected to it powers up or is operated at high voltages
• Output buffers that can sink and source14 mA
• Clock source:
• Source may only be a 48 MHz clock input signal.
• Enhanced Power Management (PM), including:
• Reduced current leakage from pins
• Low-power CMOS technology
• Ability to shut off clocks to all modules
• General features include:
• Access to all configuration registers is through an Index and a Data register, which can be relocated within the ISA I/O address space
• 100-pin Plastic Quad Flatpack (PQFP) package