MT90225AG Zarlink Semiconductor, MT90225AG Datasheet - Page 59

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MT90225AG

Manufacturer Part Number
MT90225AG
Description
Description = 16 Port TC PHY For T1, E1 And DSL ;; Package Type = N/a ;; No. Of Pins =
Manufacturer
Zarlink Semiconductor
Datasheet
Data Sheet
Address (Hex):
Direct access
Reset Value (Hex):
Address (Hex):
Direct access
Reset Value (Hex):
Bit #
Bit #
15:0
2
1
0
Type
Type
R/W
R/W
R/W
R/W
Clock and sync format:
When 0, TDM is in Generic mode: clock is 1x data rate and sync is 1 bit long at beginning
of frame.
When 1, TDM is ST-BUS Format: clock 2x data rate and sync as per ST-BUS format
Clock polarity:
When 0, the data is output/sampled at the falling edge of TXCK
When 1, the data is output/sampled at the rising edge of TXCK
This bit is ignored in ST-BUS Format.
Sync polarity:
When 0, the sync pulse is active low
When 1, the sync pulse is active high.
This bit is ignored in ST-BUS Format.
Each bit controls if the corresponding time slot is used to carry ATM Traffic. When not in
use, the DSTo pin is in High Z mode for the corresponding time slot.
This registers controls time slots 15:0.
0x0600 - 0x060F (16 reg)
1 reg. per TX link.
0000
0x0610 - 0x061F (16 reg)
Control time slot 15:0
0000
Table 34 - TDM TX Mapping (timeslots 15:0) Register
Table 33 - TDM TX Link Control Register (continued)
Zarlink Semiconductor Inc.
Description
Description
59

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