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Functional Description
3
Tick timers Four programmable 16-bit timers (one in S82378ZB ISA bridge; three
in Z8536 CIO device)
Watchdog timer Provided in SGS-Thomson M48T59
Interrupts Software interrupt handling via Raven (PCI-MPU bridge) and Winbond
(PCI-ISA bridge) controllers
VME I/O VMEbus P2 connector
Serial I/O MVME712M-compatible models: 3 async ports, 1 sync/async port via
P2 and transition module
MVME761-compatible models: 2 async ports, 2 sync/async ports via
P2 and transition module
Parallel I/O MVME712M-compatible models: Centronics parallel port (PC87308
SIO) via P2 and transition module
MVME761-compatible models: IEEE 1284 bidirectional parallel port
(PC87308 SIO) via P2 and transition module
SCSI I/O MVME712M-compatible models: 8-bit/16-bit single-ended fast SCSI-2
interface (SYM53C825A) via P2 and transition module
MVME761-compatible models: 8-bit/16-bit single-ended fast SCSI-2
interface (SYM53C825A) via P2
Ethernet I/O MVME712M-compatible models: AUI connections via P2 and
transition module
MVME761-compatible models: 10BaseT/100BaseTX connections via
P2 and transition module
PCI interface One IEEE P1386.1 PCI Mezzanine Card (PMC) slot; one 114-pin
Mictor connector for additional PMC carrier board
Keyboard/mouse
interface
Support for keyboard and mouse input (PC87308 SIO) via front panel
Floppy disk
controller
Support for floppy disk drive (PC87308 SIO) via front panel connector
Table 3-1. MVME2603/2604 Features (Continued)
Feature Description