hi-6110 Holt Integrated Circuits, Inc., hi-6110 Datasheet - Page 2

• Manufacturer Part Number: hi-6110
• Description: Bc / Rt / Mt Message Processor
• Manufacturer: Holt Integrated Circuits, Inc.

PIN DESCRIPTIONS
BUSA,
BUSB,
VDDA, VDDB
RTA0-RTA4
SIGNAL
BCMODE
RA0 - RA3
BCSTART
VALMESS
FFEMPTY
RTMODE
VDDLOG
RCMDA
RCMDB
D0 - D15
TXINHA
TXINHB
ERROR
RFLAG
RCVA
RCVB
RTAP
RF0 /
RF1 /
GND
STR
R/
CLK
MR
CS
W
BUSA
BUSB
FUNCTION
OUTPUTS
OUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUTS
POWER
POWER
POWER
INPUTS
INPUT
INPUT
INPUT
INPUT
INPUT
XFMR
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
I/O
PUT
During I/O operations, data is latched on rising edge.
Device register access, READ = 1, WRITE = 0. (12K ohm pull-up resistor)
Chip Select for register reads and writes, active low. (12K ohm pull-down resistor)
Data bus signals. (12K ohm pull-down resistors)
Register access address, inputs are ORed with corresponding Control register bits.
(12K ohm pull-down resistors)
Message starts on rising edge when in BC mode. Input is ORed with a corresponding
Control register bit, where a 0 to 1 transition will also trigger message start. (This input
has a 12K ohm pull-down resistor.)
System Clock. (12K ohm pull-down resistor)
Power supply Ground, 0V.
Master eset, active high. Clears all data FIFOs and all registers except the Control,
Transmit Status Word and Transmit Mode Data Word registers. This i
with a corresponding Control register bit (12K ohm pull-down resistor)
ERROR g
In BC mode, ERROR
For RT
This
Goes high at the end of a valid message sequence.
corresponding Status register bit.
When low, data is available in the receive data FIFO for the active bus. This output
signal mirrors a corresponding Status register bit.
Flag for register writes of received message words other than Data words.
In BC mode: Goes low when a Status Word register is written.
In RT or MT mode: Goes low when either a Command word, Status word, or Mode
data word register is received and written in a register. This output mirrors a
corresponding Status register bit.
RF0 function: If a “1” when reading Bus A Word or Bus B Word registers, the stored
word had data sync.
RCMDA function: In RT mode or MT mode, RCMDA goes high when a valid
receive command has been decoded on Bus A.
This output mirrors a corresponding Status register bit.
RF1 function: If a “1” when reading Bus A Word or Bus B Word registers, the stored
word had command sync.
RCMDB function: In RT mode or MT mode, RCMDB goes high when a valid
receive command has been decoded on Bus B.
This output mirrors a corresponding Status register bit.
Receive A and Receive B flags: In BC mode, these signals go high when any valid
word is received on Bus A or Bus B.
In RT or MT mode, these signals go high when a valid command is received on Bus A
or Bus B. For valid RT-to-RT only, RCV goes high after command word pair. These
output signals mirror two corresponding Status register bits.
Logic one disables the Bus A transmitter. (12K ohm pull-up resistor)
Logic one disables the Bus B transmitter. (12K ohm pull-up resistor)
Positive and negative polarity of 1553 signals for Buses A and B. These signal pairs
connect the analog transceivers to the external transformer.
Selects operating mode. This input signal is ORed with a corresponding
Control register bit. (12K ohm pull-up resistor)
Selects operating mode. This input signal is ORed with a corresponding
Control register bit. (12K ohm pull-down resistor)
Remote Terminal address inputs, for RT mode. (12K ohm pull-up resistors)
This input sets Remote Terminal address parity, odd. (12K ohm pull-down resistor)
+3.3VDC ±5% power supply input for internal logic
+3.3VDC ±5% power supply inputs for Bus A and Bus B transceivers
output signal mirro
R
and MT
oes high
HOLT INTEGRATED CIRCUITS
mode ,
when a message
s ERROR resets automatically after 3 to 4uS.
resets
rs a
HI-6110
DESCRIPTION
corresponding Status register bit.
when
2
BCSTART is asserted to begin
error is
.
detected.
This output
(12K ohm pull-
signal
the
up
nput is ORed
next message.
mirrors a
resistor)