MT90520AG ZARLINK [Zarlink Semiconductor Inc], MT90520AG Datasheet - Page 144

• Manufacturer Part Number: MT90520AG
• Description: 8-Port Primary Rate Circuit Emulation AAL1 SAR
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

Address: 6202 + p*10 (Hex)
Label: TDM2_Pp (where p represents the port number)
Reset Value: 0000 (Hex)
Address: 6204 + p*10 (Hex)
Label: TDM3_Pp (where p represents the port number)
Reset Value: 0000 (Hex)
PORT_CONTROL
PORT_CONTROL
TDM_SEGMEN_
TDM_SEGMEN_
TDM_SEGMEN_
TDM_SEGMEN_
TDM_REASS_
TDM_REASS_
TDM_REASS_
TDM_REASS_
TDM_REASS_
TDM_REASS_
N_SILENCE
BASE_ADD
BASE_ADD
REPLAY_
CLK_POL
EXT_ENB
EXT_ENB
Reserved
INT_ENB
Reserved
INT_ENB
Label
Label
LOS
Position
Position
Bit
4:0
9:5
10
11
12
13
14
15
12:9
8:0
Bit
13
14
15
Table 83 - TDM Control Register 2 (one per port)
Table 84 - TDM Control Register 3 (one per port)
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/O
Type
R/W
R/W
R/W
R/W
R/O
SDT Reassembly Circular Buffer Base Address. (Applies only to SDT mode.)
Represents bits<19:15> of the SDT Reassembly Circular Buffer word address in external
memory.
Always reads “00_000”.
Play old data or silence byte on underrun. (Applies only to SDT mode.)
‘0’ = During a TDM underrun, the reassembly process outputs silence bytes (programmed
in the MAINTDM1 register at 6000h) on DSTo.
‘1’ = During a TDM underrun, the reassembly process replays the reassembly circular
buffer.
Reassembly TDM Output Clock Polarity.
‘0’ = TDM data is driven out on the falling edge of SToCLK or C4M_C2M
‘1’ = TDM data is driven out on the rising edge of SToCLK or C4M_C2M.
In ST-BUS, this bit must be set to “0”
Outgoing Loss of Signal. (Applies only to UDT mode.)
CSTo/LOSo pin drives out the value programmed in this field.
Reassembly TDM port control.
‘0’ = Port is not active (output data pins are held in high impedance).
‘1’ = Port is active.
Reassembly Internal Enable Process.
‘0’ = Process is disabled.
‘1’ = Process that transfers data/CAS from the TDM output buffer to the output pins is
enabled.
Reassembly External Enable Process. (Applies only to SDT mode.)
‘0’ = Process is disabled.
‘1’ = Process that transfers data/CAS from external memory to the TDM output buffer is
enabled.
Always reads “0000”.
Segmentation Circular Buffer Base Address. (Applies only to SDT mode.)
Represents bits<19:11> of the SDT Segmentation Circular Buffer word address in
external memory.
Segmentation TDM Port Control.
‘0’ = Port is not active (data is not transferred from the TDM module to the rest of the
MT90520).
‘1’ = Port is active.
Segmentation Internal Enable Process.
‘0’ = Process is disabled.
‘1’ = Process that writes data/CAS to the TDM input buffer is enabled.
Segmentation External Enable Process. (Applies only to SDT mode.)
‘0’ = Process is disabled.
‘1’ = Process that transfers data from the input buffer to external memory is enabled.
Zarlink Semiconductor Inc.
MT90520
144
Description
Description
Data Sheet