參數(shù)資料
型號： UTI760A
廠商： Electronic Theatre Controls, Inc.
英文描述： UTI760A RTS Remote Terminal for Stores
中文描述： UTI760A轉(zhuǎn)運(yùn)站遠(yuǎn)程終端為商店
文件頁數(shù)： 19/48頁
文件大?。?/td> 928K
代理商： UTI760A
RTS-19
STATUS OUTPUTS
NAME
PIN NUMBER
(PGA)
A5
TYPE
ACTIVE
DESCRIPTION
MERR
[0]
TO
AH
Message Error. The active high MERR output signals that
the Message Error bit in the Status Register has been set
due to receipt of an illegal command, or an error during
message sequence. MERR will reset to logic zero on the
receipt of the next valid command.
Transmission Error. The active high TXERR output is
asserted when the RTS detects an error in the reflected
word versus the transmitted word, using the continuous
loop-back compare feature. Reset on next COMSTR
assertion.
Fail-safe Timer. The TIMERON output pulses low for
760μs when the RTS begins transmitting (i.e., rising edge
of VALMSG) to provide a fail-safe timer meeting the
requirements of MIL-STD-1553B. This pulse is reset
when COMSTR goes low or during a Master Reset.
Command Strobe. COMSTR is an active low output of
500ns duration identifying receipt of a valid command.
Broadcast. BRDCST is an active low output that identifies
receipt of a valid broadcast command.
Remote Terminal to Remote Terminal. RTRT is an active
high output indicating that the RTS is processing a remote
terminal to remote terminal command.
Disconnect or Terminal Active. Bit 11 of the Control
Register selects the mode of this dual-function pin. In the
“Disconnect” mode (bit 11 = 1), the active high DSCNCT
output is asserted when all six Terminal Address pins
(RTA0 - RTA4, RTPTY) go high, indicating a disconnect
condition. In the “Terminal Active” mode (bit 11 = 0), the
active low TERACT output is asserted at the beginning of
the RTS access to internal RAM for a given command and
negated after the last access for that command.
Valid Message. VALMSG is an active high output
indicating a valid message (including Broadcast) has
been received. VALMSG goes high prior to transmitting
the 1553 status word and is reset upon receipt of the
next command.
RTS Busy. RBUSY is asserted high while the RTS is
accessing its own internal RAM either to read or update
the pointers or to store or retrieve data words. RBUSY
becomes active either 2.7μs or 5.7μs before RTS requires
RAM access. This timing is controlled by Control Register
bit 12 (see section 1.3).
Transmit/Receive. A high level on this pin indicates a
transmit command message transfer is being or was
processed, while a low level indicates a receive command
message transfer is being or was processed.
TXERR
[0]
B5
TO
AH
TIMERON
[1]
B6
TO
AL
COMSTR
[1]
BRDCST
[1]
RTRT
[0]
B8
TO
AL
A7
TO
AL
B7
TO
AH
DSCNCT or
TERACT
[X]
A6
TO
--
VALMSG
[0]
L8
TO
AH
RBUSY
[0]
C2
TO
AH
T/R
[0]
B4
TO
--
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