ACT3492 datasheet(14/49 Pages) AEROFLEX

14 / 49 page

Aeroflex Circuit Technology

SCD3492 REV B 6/26/01 Plainview NY (516) 694-6700

HSFAIL

OUTPUT

Handshake Failure - This line pulses low if the allowable time

for DTAK response has been exceeded during the

ASIC/subsystem data transfer handshaking.

LSTCMD/CWEN

OUTPUT

Last Command/Command Word Enable - This line pulses low

when servicing a valid and legal mode command to transmit last

command. When in RT mode this line must not be used to

enable data from the subsystem. This line also pulses low, when

in the Bus Control mode, when a command word is required for

transmission.

STATEN/

STATSTB

OUTPUT

Status Enable/Status Strobe - This line pulses low to enable

the status word onto the internal highway for transmission.

When in RT mode this line must not be used to enable data

from the subsystem. This line also pulses high, when in the Bus

Control mode, to strobe received status words into the

subsystem. When PASMON is true this line pulses high for

Command and Status words.

STAT UPDATE

INPUT

Status Update - When held low, causes TF or SSF to appear in

Status Word response to Transmit Status or Transmit Last Com-

mand issued immediately after fault occurrence

BITEN/

RMDSTB

OUTPUT

Built In Test Enable/Receive Mode Data Strobe - This line

pulses low when servicing a valid and legal mode command to

transmit the internal BIT word. This signal is for information only

and must not be used to enable data from the subsystem. This

line also pulses high when in the Bus Control mode when mode

data is received to be passed to the subsystem and when data

is passed to the subsystem during PASMON.

DWSYNC

OUTPUT

Data Word Sync - This line goes low if a data word sync and

two Manchester biphase bits are valid.

ENABLE

INPUT

Enable - When held low, enables Bit Decode, Next Status, and

Status Update program lines.

CMSYNC

OUTPUT

Command Word Sync - This line goes low if a command word

sync and two Manchester biphase bits are valid.

NDRQ

OUTPUT

D10

No Data Required - This line goes low if the encoder transmit

buffer is full i.e. another word is going to be transmitted. This

signal is for information only and must not be used to enable

data from the subsystem.

NEXT STAT

INPUT

A10

Next Status - When held low, causes TF or SSF to appear in

very next Status Word after fault occurrence (except for

Transmit Status or Transmit Last Command).

MASTER RESET

INPUT

Master Reset - A logic low on this input (100 nSec minimum)

will reset the interface.

Pin Description (Cont.)

Signal

Direction

Signal Description

ACT3492 数据表(PDF) 14 Page - Aeroflex Circuit Technology

ACT3492 数据表(HTML) 14 Page - Aeroflex Circuit Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

数据表下载

链接网址

ACT3492 数据表(PDF) 14 Page - Aeroflex Circuit Technology

ACT3492 数据表(HTML) 14 Page - Aeroflex Circuit Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

数据表 下载

链接网址

数据表下载