hi-1575pqt Holt Integrated Circuits, Inc., hi-1575pqt Datasheet - Page 7

• Manufacturer Part Number: hi-1575pqt
• Description: Mil-std-1553 3.3v Dual Transceivers With Integrated Encoder / Decoders
• Manufacturer: Holt Integrated Circuits, Inc.

TIMING DIAGRAMS
CHA/CHB
RCVA(B)
ERROR
STRB
1553
BUS
STRB
D15:0
SYNC
REG
R/W
MID-SYNC
Figure 10. DATABUS TIMING - WRITE.
(BUSB -
(BUSB -
(BUSB -
BUSA -
BUSA -
BUSA -
t
CHWS
t
t
t
RWWS
RWS
BUSA
BUSB
BUSA
BUSB
BUSA
BUSB
DWS
)
)
)
COMMAND
VALID
t
t
STR
FH
MID-PARITY
VALID
t
R2
t
FR
BIT PERIOD
FIGURE 8. MIL-STD-1553 BUS RECEIVER TIMING
MID-SYNC
t
ONE
RF
FIGURE 9. HI-1575 RECEIVER TIMING
(Read RXA)
HOLT INTEGRATED CIRCUITS
t
t
R1
R1
t
RWH
t
t
CHWH
RWWH
t
t
DWH
R3
HI-1575
DATA
COMMAND SYNC
7
BIT PERIOD
DATA SYNC
t
ZERO
FH
CHA/CHB
MID-PARITY
t
STRB
SYNC
D15:0
FR
REG
R/W
t
RF
(Read RXA)
t
Figure 11. DATABUS TIMING - READ
R3
MID-SYNC
t
CHRS
t
t
t
t
RRS
RWRS
R1
R1
BIT PERIOD
t
DRV
ONE
WORD WITH ERROR
t
R2
VALID
t
STR
t
FH
VALID
MID-PARITY
t
FR
t
R2
t
RF
t
(Read SAM)
RRH
t
t
CHRH
RWRH
t
DRT