MA28139 Datasheet, PDF (30/34 Pages) Dynex Semiconductor – OBDH Bus Terminal

MA28139
OBT/DBI PIN LIST AND DESCRIPTIONS
No.
Name
Type
8
RIRSYNC
O/I (PULL-DOWN)
9
RIRCLK
O/I (PULL-DOWN)
10
RIRDATA
O/I (PULL-DOWN)
11
RIRVAL
O/I (PULL-DOWN)
12
RRRCLK
O
13
RRRDATA
O
21
RRRVAL
O
22
RRRINIT
I (PULL-DOWN)
23
RRTDATA
I (PULL-DOWN)
24
RRTEN
I (PULL-DOWN)
25
CITSYNC
I (PULL-DOWN)
26
CITINV
I (PULL-DOWN)
27
CITMOD
I (PULL-DOWN)
28
CITCLK
I (PULL-DOWN)
29
CITSEL
I (PULL-DOWN)
34
RBTDATA
I (PULL-DOWN)
35
RBTEN
I (PULL-DOWN)
30
RBRCLK
O
31
RBRDATA
O
32
RBRVAL
O
33
RBRINIT
I (PULL-DOWN)
Description
Sync from I-bus or (CT mode) input to RTU kernel
Clock from I-bus or (CT mode) input to RTU kernel
Data from I-bus or (CT mode) input to RTU kernel
Validity from I-bus or (CT mode) input to RTU kernel
Clock from R-bus
Data from R-bus
Validity from R-bus
Initialise R-bus receiver
Data to R-bus or (CT mode) to I-bus
Enable R-bus transmitter
(CT mode) sync to I-bus
(CT mode) invalid to I-bus
(CT mode) modulation to I-bus
(CT mode) clock to I-bus
(CT mode) select nominal or redundant I-bus
Data to BT-bus
Enable BT-bus transmitter
Clock from BT-bus
Data from BT-bus
Validity from BT-bus
Initialise BT-bus receiver
OBT/OBDH PIN LIST AND DESCRIPTIONS
No.
Name
Type
111
NIDS1n
110
NIDS2n
109
RIDS1n
108
RIDS2n
107
NRDS1n
106
NRDS2n
105
RRDS1n
104
RRDS2n
103
RR1n
102
RR2
101
RR3n
100
RR4
99
NRE
98
RRE
97
NBDS1n
96
NBDS2n
95
RBDS1n
94
RBDS2n
93
BR1n
92
BR2
91
BR3n
90
BR4
89
NBE
88
RBE
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
O
O
O
O
O
O
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
I (PULL-UP) (CSCHMITT)
O
O
O
O
O
O
Description
Nominal I-bus Discriminator Signal 1
Nominal I-bus Discriminator Signal 2
Redundant I-bus Discriminator Signal 1
Redundant I-bus Discriminator Signal 2
Nominal R-bus Discriminator Signal 1
Nominal R-bus Discriminator Signal 2
Redundant R-bus Discriminator Signal 1
Redundant R-bus Discriminator Signal 2
R-bus driver 1
R-bus driver 2
R-bus driver 3
R-bus driver 4
Nominal R-bus Enable
Redundant R-bus Enable
Nominal BT-bus Discriminator Signal 1
Nominal BT-bus Discriminator Signal 2
Redundant BT-bus Discriminator Signal 1
Redundant BT-bus Discriminator Signal 2
BT-bus driver 1
BT-bus driver 2
BT-bus driver 3
BT-bus driver 4
Nominal BT-bus enable
Redundant BT-bus enable
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