MT90520AG ZARLINK [Zarlink Semiconductor Inc], MT90520AG Datasheet - Page 122
MT90520AG
Manufacturer Part Number
MT90520AG
Description
8-Port Primary Rate Circuit Emulation AAL1 SAR
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
1.MT90520AG.pdf
(180 pages)
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Address: 103E (Hex)
Label: DTCR
Reset Value: 0000 (Hex)
Address: 1040 (Hex)
Label: DCGTOR
Reset Value: 0001 (Hex)
Address: 1042 (Hex)
Label: DTSR
Reset Value: 0000 (Hex)
TCBE_SE
Reserved
Reserved
Reserved
TDSENB
AUTO
DCGP
TCBE
Label
Label
Label
Position
Position
Position
15:10
15:3
15:1
9:0
Bit
Bit
Bit
0
1
2
0
Table 38 - Data Cell Generation Time Out Register
Type
Type
Type
R/W
R/W
R/W
R/W
R/O
R/O
R/O
R/O
Table 37 - Data TX_SAR Control Register
Table 39 - Data TX_SAR Status Register
Data TX_SAR Enable.
When cleared, the Data TX_SAR Read Pointer (register at 103Ch) is reset to “000_0000”
and no data cells are transmitted. When set, the Data TX_SAR sends the cells stored in
the Data TX_SAR Cell Buffer.
When set, the Data TX_SAR transmits cells when the CBR TX_SAR is not busy. When
cleared, data cell transmission is controlled by the DCGTOR register at 1040h.
Transmit Cell Buffer Empty Service Request Enable.
When set, a service request to the CPU is asserted when the cell buffer is empty, as
indicated by the assertion of the TCBE bit in the Data TX_SAR Status Register at 1042h.
When cleared, this service request is masked.
Always reads “0000_0000_0000_0”.
These bits control the time between data cell transmissions when the Data TX_SAR is in
timer mode (i.e., AUTO=0 in Data TX_SAR Control Register at 103Eh). A value of all zeros
disables data cell transmission. The time between cells is determined as follows:
Always reads “0000_00”.
Transmit Cell Buffer Empty.
This bit is set when the read pointer is equal to the write pointer and indicates that all of the
cells in the buffer have been sent. This bit is cleared when the TDSENB bit in the DTCR
register at 103Eh is cleared.
Always reads “0000_0000_0000_000”.
∆(Seconds)
Zarlink Semiconductor Inc.
MT90520
=
----------------------- -
mclk Hz
122
65535
(
)
×
DCGP
Description
Description
Description
Data Sheet
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