
DS21455/DS21458 Quad T1/E1/J1 Transceivers
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ADDRESS
REGISTER NAME
REGISTER
ABBREVIATION
TS16
RS1
RS2
RS3
RS4
RS5
RS6
RS7
RS8
RS9
RS10
RS11
RS12
RS13
RS14
RS15
RS16
CCR1
CCR2
CCR3
CCR4
TDS0SEL
TDS0M
RDS0SEL
RDS0M
LIC1
LIC2
LIC3
LIC4
—
TLBC
IAAR
PCICR
TCICE1
TCICE2
TCICE3
TCICE4
RCICE1
RCICE2
RCICE3
RCICE4
RCBR1
RCBR2
RCBR3
RCBR4
TCBR1
TCBR2
TCBR3
TCBR4
H1TC
H1FC
H1RCS1
H1RCS2
PAGE
5F
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
7E
7F
80
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
90
91
92
93
Transmit Signaling Register 16
Receive Signaling Register 1
Receive Signaling Register 2
Receive Signaling Register 3
Receive Signaling Register 4
Receive Signaling Register 5
Receive Signaling Register 6
Receive Signaling Register 7
Receive Signaling Register 8
Receive Signaling Register 9
Receive Signaling Register 10
Receive Signaling Register 11
Receive Signaling Register 12
Receive Signaling Register 13
Receive Signaling Register 14
Receive Signaling Register 15
Receive Signaling Register 16
Common Control Register 1
Common Control Register 2
Common Control Register 3
Common Control Register 4
Transmit Channel Monitor Select
Transmit DS0 Monitor Register
Receive Channel Monitor Select
Receive DS0 Monitor Register
Line Interface Control 1
Line Interface Control 2
Line Interface Control 3
Line Interface Control 4
Unused. Must be set = 00h for proper operation
Transmit Line Build-Out Control
Idle Array Address Register
Per-Channel Idle Code Value Register
Transmit Idle Code Enable Register 1
Transmit Idle Code Enable Register 2
Transmit Idle Code Enable Register 3
Transmit Idle Code Enable Register 4
Receive Idle Code Enable Register 1
Receive Idle Code Enable Register 2
Receive Idle Code Enable Register 3
Receive Idle Code Enable Register 4
Receive Channel Blocking Register 1
Receive Channel Blocking Register 2
Receive Channel Blocking Register 3
Receive Channel Blocking Register 4
Transmit Channel Blocking Register 1
Transmit Channel Blocking Register 2
Transmit Channel Blocking Register 3
Transmit Channel Blocking Register 4
HDLC #1 Transmit Control
HDLC #1 FIFO Control
HDLC #1 Receive Channel Select 1
HDLC #1 Receive Channel Select 2
102
97
97
97
97
97
97
97
97
97
97
97
97
97
97
97
97
71
208
209
210
91
91
92
92
164
167
168
169
—
166
110
110
110
110
111
111
111
111
112
112
113
113
114
114
113
114
115
115
143
145
146
146