DS3112
80 of 135
Bits 0 to 4/T1/E1 Drop Port A Select Bits (DPAS0 to DPAS4).
Bits 8 to 12/T1/E1 Drop Port B Select Bits (DPBS0 to DPBS4).
These bits select which of the 28 T1 ports or 16 E1 ports (if any) should be output at either Drop Port A
or Drop Port B. If no port is selected, the LRDATA, LRCLKA, LRDATB, and LRCLKB output pins will
be forced low.
DPxS4:0
00000 No Port
01000 Port 8
10000 Port 16
00001 Port 1
01001 Port 9
10001 Port 17
00010 Port 2
01010 Port 10
10010 Port 18
00011 Port 3
01011 Port 11
10011 Port 19
00100 Port 4
01100 Port 12
10100 Port 20
00101 Port 5
01101 Port 13
10101 Port 21
00110 Port 6
01110 Port 14
10110 Port 22
00111 Port 7
01111 Port 15
10111 Port 23
Register Name:
T1E1SIP
Register Description:
T1/E1 Select Register for Transmit Insert Ports A and B
Register Address:
62h
Bit #
7
6
5
4
Name
n/a
n/a
n/a
IPAS4
Default
-
-
-
0
Bit #
15
14
13
12
Name
n/a
n/a
n/a
IPBS4
Default
-
-
-
0
Note:
Bits that are underlined are read-only; all other bits are read-write.
Bits 0 to 4/T1/E1 Insert Port A Select Bits (IPAS0 to IPAS4).
Bits 8 to 12/T1/E1 Insert Port B Select Bits (IPBS0 to IPBS4).
These bits select if clock and data from either of the two insert ports (Insert Port A or Insert Port B)
should replace the clock and data presented at one of the 28 T1 ports or 16/21 E1 ports. If no port is
selected, the clock and data presented at the LTDATA, LTCLKA, LTDATB, and LTCLKB input pins is
ignored. The same port should not be selected for both Insert Port A and Insert Port B.
IPxS4:0
00000 No Port
01000 Port 8
10000 Port 16
00001 Port 1
01001 Port 9
10001 Port 17
00010 Port 2
01010 Port 10
10010 Port 18
00011 Port 3
01011 Port 11
10011 Port 19
00100 Port 4
01100 Port 12
10100 Port 20
00101 Port 5
01101 Port 13
10101 Port 21
00110 Port 6
01110 Port 14
10110 Port 22
00111 Port 7
01111 Port 15
10111 Port 23
11000 Port 24
11001 Port 25
11010 Port 26
11011 Port 27
11100 Port 28
11101 No Port
11110 No Port
11111 No Port
3
2
1
0
IPAS3
0
IPAS2
0
IPAS1
0
IPAS0
0
11
10
9
8
IPBS3
0
IPBS2
0
IPBS1
0
IPBS0
0
11000 Port 24
11001 Port 25
11010 Port 26
11011 Port 27
11100 Port 28
11101 No Port
11110 No Port
11111 No Port