Maxim Integrated DS21Q55 User Manual
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22.3.2 Transmit
The HxTCS1–HxTCS4 registers are used to assign the transmit controllers to channels 1–24 (T1) or
1–32 (E1), according to the following table.
REGISTER
CHANNELS
HxTCS1
1–8
HxTCS2
9–16
HxTCS3
17–24
HxTCS4
25–32
Register Name:
H1TCS1, H1TCS2, H1TCS3, H1TCS4
H2TCS1, H2TCS2, H2TCS3, H2TCS4
Register Description:
HDLC # 1 Transmit Channel Select
HDLC # 2 Transmit Channel Select
Register Address:
97h, 98h, 99h, 9Ah
A7h, A8h, A9h, AAh
Bit #
7
6
5
4
3
2
1
0
Name
THCS7
THCS6
THCS5
THCS4
THCS3
THCS2
THCS1
THCS0
Default
0
0
0
0
0
0
0
0
Bit 0/Transmit HDLC Channel Select Bit 0 (THCS0). Select Channel 1, 9, 17, or 25.
Bit 1/Transmit HDLC Channel Select Bit 1 (THCS1). Select Channel 2, 10, 18, or 26.
Bit 2/Transmit HDLC Channel Select Bit 2 (THCS2). Select Channel 3, 11, 19, or 27.
Bit 3/Transmit HDLC Channel Select Bit 3 (THCS3). Select Channel 4, 12, 20, or 28.
Bit 4/Transmit HDLC Channel Select Bit 4 (THCS4). Select Channel 5, 13, 21, or 29.
Bit 5/Transmit HDLC Channel Select Bit 5 (THCS5). Select Channel 6, 14, 22, or 30.
Bit 6/Transmit HDLC Channel Select Bit 6 (THCS6). Select Channel 7, 15, 23, or 31.
Bit 7/Transmit HDLC Channel Select Bit 7 (THCS7). Select Channel 8, 16, 24, or 32.