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STLC5460 Datenblatt(PDF) 23 Page - STMicroelectronics

Teile-Nr. STLC5460
Beschreibung  LINE CARD INTERFACE CONTROLLER
Download  54 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLC5460 Datenblatt(HTML) 23 Page - STMicroelectronics

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BYTE
New byte.
Byte = 1 A new byte is available in the Source Register
EOM
End of Message
EOM = 1 : there is no significant byte in the Source Register. The previous byte which
had been received was the last.
R/W = 0
Write auxiliary memory.
Writing initiates the RX Monitor Channel.
CR0/CR5
not used
SOURCE REGISTER (SRC)
When the bit CM of command register is at one, this register contains the data to be written in the control
memory at the address indicated by the destination Register. It rappresents the address of the data
memory, or of one of the insert register, corresponding to the input data to be switched to the output indi-
cated by the destination register.
Following you will find a detailed explanation case by case of the meaning of all the bits of this register.
First case CM = 1 (Bit of Command Register)
Command Memory is selected.
7
0
PCM
SR6
SR5
SR4
SR3
SR2
SR1
SR0
After Reset 00 (H)
PCM = 1
The source is PCM Input.
PCM = 0
The source is not PCM. The Source is either Multiplex Inputs (GCI) or Insert Registers.
PCM = 1
PCM
SR6
SR5
SR4
SR3
SR2
SR1
SR0
1
N1
N0
TS4
TS3
TS2
TS1
TS0
After Reset 00 (H)
If PCM is at 2 Mb/s
N0/1
PCM Number : 0 to 3
TS0/4
Time Slot Number : 0 to 31
If PCM is at 4 Mb/s
N1
PCM at 4 Mb/s : 0 or 1
TS0/4 and N0
Time slot Number : 0 to 63
N0 = TS5
If PCM is at 8 Mb/s
TS0/4 and N0/1
Time Slot Number : 0 to 127.
N0 = TS5, N1 = TS6.
PCM = 0
The Source is Multiplex Input or Insertion Register.
If
N1 = 0
Multiplexes are selected (GCI or not) then
N0 = 0
Multiplex number : 0
STLC5460
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