MA28139 Datasheet, PDF (29/34 Pages) Dynex Semiconductor – OBDH Bus Terminal

PIN ASSIGNMENT
OBT/IUB PIN LIST AND DESCRIPTIONS
No.
Name
Type
45
IRCLK
O
46
CTCLK
O
56
TRCLK
O
79
MLDATA
O
78
MLADD0
O
77
MLADD1
O
76
MLADD2
O
75
MLADD3
O
74
MLADD4
O
73
CHADD0
O
72
CHADD1
O
71
CHADD2
O
70
CHADD3
O
69
CHADD4
O
68
CHADD5
O
67
CHADD6
O
66
CHADD7
O
65
MOSC
O
64
MOLC
O
63
MOHL
O
62
MOBT
O
61
MODBL
O
60
MODS16
O
59
MODS8
O
58
MOANS
O
57
MOAND
O
131
PC
O
132
ANCLK
O
1
SOC
O
2
SH
O
42
DIGIN
I (PULL-DOWN)
43
ANSIN
I (PULL-DOWN)
3
BCP1
O
4
BCP2
O
5
BCP3
O
6
BCP4
O
7
BCPVAL
O
37
DATARRT
O
38
ENRRT
O
MA28139
Description
Interrogation rate clock
Continuous clock
Transfer clock
Memory load data to user
Memory load address MSB (Interrogation bit 10)
Memory load address
Memory load address
Memory load address
Memory load address LSB (Interrogation bit 14)
Channel address 0 (Interrogation bit 23)
Channel address 1
Channel address 2
Channel address 3
Channel address 4
Channel address 5
Channel address 6
Channel address 7 (Interrogation bit 30)
Mode short command (Interrogation mode bits 19/22 = 1 hex)
Switch closure on/off command (mode 2)
High power on/off command (mode 3)
Mode block transfer (mode 7)
Digital bi-level data acquisition (mode 8)
16-bit serial digital data acquisition (mode A)
8-bit serial digital data acquisition (mode B)
Single ended analog data acquisition (mode C)
Double ended analog acquisition (mode E)
Power on to analog-to-digital converter
ADC shift clock
Start of conversion
Sample/hold
Digital serial data input
Analog serial data input
Broadcast pulse 1 (Interrogation bit 3)
Broadcast pulse 2 (Interrogation bit 4)
Broadcast pulse 3 (Interrogation bit 5)
Broadcast pulse 4 (Interrogation bit 6 when extfmt = 0)
Broadcast pulses valid
Data to RRT when used as RTU kernel
Enable RRT when used as RTU kernel
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