HI-6121PQMF HOLTIC [Holt Integrated Circuits], HI-6121PQMF Datasheet

HI-6121PQMF

Manufacturer Part Number

HI-6121PQMF

Description

MIL-STD-1553 Remote Terminal ICs

Manufacturer

HOLTIC [Holt Integrated Circuits]

Datasheet

1.HI-6121PQMF.pdf (116 pages)

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GENERAL DESCRIPTION

The HI-6120 and HI-6121 provide a complete, integrated,

3.3V MIL-STD-1553 Remote Terminal in a monolithic

silicon gate CMOS device. Two host interface options are

offered: The HI-6120 uses a 16-bit parallel host bus

interface for access to registers and RAM and is offered in

a 100-pin plastic quad flat pack (PQFP). The HI-6121 has a

4-wire SPI (Serial Peripheral Interface) host connection

and comes in a reduced pin count 52-pin PQFP or 64-pin

QFN. Both devices handle all aspects of the MIL-STD-

1553 protocol, including message encoding, decoding,

error detection, illegal command detection and data

buffering. Host data management is simplified by storing

message information and data within the on-chip 32K x 16

static RAM.

A descriptor table in shared RAM provides fully

programmable memory management. Multiple descriptor

tables can be implemented for fast context switching.

Transmit and receive commands can use any of four

different data buffer modes: indexed (single) buffering,

ping-pong (double) buffering or two circular buffer

schemes. Transmit and receive commands for each

subaddress may use different buffer modes. Mode code

commands employ a simple scheme for storing mode data

and message information with programmable interrupts.

The device provides internal illegalization capability,

allowing any subset of subaddress, command T/

broadcast vs non-broadcast and word count (or mode

code) to be illegalized, resulting in a total of 4,096 possible

combinations. The illegalization table resides in internal

RAM. The RT can also operate without illegal command

detection, providing “in form” responses to all valid

commands. Broadcast command recognition is optional.

The HI-6120 and HI-6121 provide programmable

interrupts for automatic message handling, message

status and general status. A host interrupt history log

maintains information about the last 16 interrupts.

The HI-6120

self-initialization. A dedicated SPI port reads data from

external serial EEPROM memory to fully configure the

descriptor table, illegalization table and host interrupts.

Internal dual-redundant transceivers provide direct

connection to bus isolation transformers.

offered with industrial temperature range. Extended

temperature range is also offered, with optional burn-in. A

“RoHS compliant” lead-free option is offered.

HI-6120 Rev New

November 2009

and HI-6121

can be configured for automatic

HI-6121 Serial Peripheral Interface (SPI)

The device

HOLT INTEGRATED CIRCUITS

MIL-STD-1553 Remote Terminal ICs

www.holtic.com

HI-6120 Parallel Bus Interface and

bit,

PIN CONFIGURATION (Top View)

REMOTE TERMINAL FEATURES

COMP - 1

MODE - 3

MCLK - 7

Fully integrated 3.3V Remote Terminal meets all

requirements for MIL-STD-1553B Notice 2

Four data buffer methods for subaddress transmit and

receive commands: indexed (single) buffering, ping-

pong (double) buffering and two circular buffer modes

Independently selectable data buffer modes for

transmit and receive commands on each subaddress

Simplified mode code command handling

Integral 16-bit Time-Tag counter has programmable

options for clock, interrupts and auto-synchronization

Message information and time-tag words are stored

with message data words for all transacted messages

In compliance with MIL-STD-1553B Notice 2, received

data from broadcast messages may be optionally

separated from non-broadcast received data

Optional interrupt log buffer stores the most recent 16

interrupts to minimize host service duties

Optional illegal command detection uses internal table

Optional automatic self-initialization at reset

+/- 8kV ESD Protection (HBM, all pins)

MIL-STD-1760 compliant

RTA0 - 8

RTA1 - 9

RTA2 - 10

RTA3 - 12

RTA4 - 13

SCK - 5

SO - 6

SI - 4

- 2

- 11

HI-6121 in 52-PQFP Package

HI-6121PQx

39 - TEST

38 - LOCK

37 - MTSTOFF

36 - BUSA

35 - VCCP

34 -

33 -

32 - VCCP

31 -

30 -

29 -

28 -

27 - TEST3

TEST0

TEST1

TEST2

BUSA

BUSB

11/09

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