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Product Specifications
2 50-Pin Connectors
24 or 48 channels
single size (1.8” x 3.9”) and Double Size (3.6”x 3.9”) Versions
Provide a 16-bit Data path
IndustryPack Logic Interface
wait States - 0 on ID and Interrupts, 1 on SCC accesses
MVIP302 Full-duplex asynchronous EIA-232-D
Baud Rates 18 Þxed rates from 50 to 38.4K
4 user-deÞned rates using timers
Stop Bits 1, 1.5, 2 in 1/16 bit increments
Clock Source Local crystal oscillator, or external
Error Detection Parity, framing, overrun, false start bit, break
Channel Modes Full duplex, automatic echo, local loopback, remote
loopback
Number of Timers 4
Type of Timers 16-bit, multi-function, programmable
Interrupt Sources 32, maskable, vectored
Interrupt Vector 8 bits, may be independently read/writable
Auxiliary Input Lines 8 TTL/CMOS level inputs, programmable bit input
or state change detect causes interrupt or
counter/external clock input
IP Strobe Options Timer output, or baud rate clock input, or none
Motorola IndustryPacks (IPs) such as MVIP-302 are transition modules that offer mix and match functionality in a simple-to-use modular form for demanding applications of all types.The MVIP302 and MVIP303 are part of the IndustryPack family of modular I/O components. They are based around the Signetics CMOS SCC2698 Octal Universal Asynchronous Receiver/Transmitter. This component provides eight channels of full-duplex asynchronous serial communications, baud rate generators, state change detect logic, and four 16-bit counter/timers. EIA-232-D communication levels are provided by CMOS MC14C88 and MC14C89 transmitters and receivers. Five signals for each channel on the EIA-232-D interface are supported: Transmit Data (TxD), Receive Data (RxD), Ready-To-Send (RTS), Clear-To-Send (CTS) and ground. The MC14C89 Receivers are biased at 1.5 volts nominally to permit a variety of input signal levels to be received without additional interface circuitry. Protection diodes are provided in the± 12 volt supply lines to permit connection to powered equipment, even if the IndustryPack is unpowered. Vectored interrupts are fully supported. A common 8-bit vector register is provided. Channels a,b,c,d interrupt on IRQ0; channels e,f,g,h interrupt on IRQ1. DMA is supported on channels c and d. If DMA is used, then the Request-To- Send lines on these two channels are not available . The IndustryPack is controlled by a single CMOS 22V10 type PAL. Connection to the MVIP302 is via a standard 50-conductor ribbon cable. Programming MVIP302, The SCC2698B is divided into four functional blocks lettered A through D. Each functional block contains two serial channels. The channels are identified by lower case letters a through h. The SCC2698B contains 64 internal registers, 16 for each functional block. Each of these registers are accessible using a read or write to the MVIP302 or the MVIP303 I/O space. The IndustryPack provides an external Interrupt Vector Register. This register is readable and writable in the memory space of the corresponding IP slot at any odd byte address using an offset of $01 from the IP memory base address (as programmed on the carrier board). The 8-bit vector register is normally programmed by the operating system I/O driver software prior to enabling interrupts. The Interrupt Vector Register may also be read on odd bytes in the upper half of the Industry Pack ID PROM space. The address offset is IP base + $C1. However, this register cannot be written in the ID PROM space from the MVME162 board. The interrupt service routine polls the SCC2698B to determine the detailed cause of the interrupt. Function blocks A and B interrupt on IRQ0. Function blocks C and D interrupt on IRQ1. Refer to the MVME162 Embedded Controller UserÕs Manual for interrupt mapping to your bus. Note that although two distinct interrupt levels are provided, here is a single vector for the IndustryPack.
Alternative Part No. IP-OPTO, IP OPTO, IPOPTO, IP-ADIO, IP-DUAL, IP-Digital 48, IP-Ethernet, mVIP-302, mVIP 302, mVIP302, mVIP303, mVIP-303, mVIP 303
Product Manual
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