MT9072AB datasheet(181/275 Pages) ZARLINK

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MT9072

Data Sheet

181

Zarlink Semiconductor Inc.

17.2.4

Master Status Registers (Y10 - Y1A) Bit Functions

Tables 158 to 172 describe the bit functions of each of the Master Status Registers in the MT9072 in E1 mode.

Each register is repeated for each of the 8 framers. Framer 0 is addressed with Y=0, Framer 1 with Y=1, Framer 2

with Y=2 and so on up to Framer 7 with Y=7 (where Y represents the 4 most significant address bits (MSB)

A11-A8).

1E4CK

(0)

Extracted 4 Data Link Clock. If one, the RxDLC pin outputs an ST-BUS type 4.096 MHz

clock signal derived from a doubled 2.048 MHz clock signal at the EXCLi pin. This clock is

synchronous with the receive data before it passes through the elastic buffer at the RxDL pin,

or at the DSTo pin if control bit ELAS (register address Y03) is disabled. If zero, the RxDLC pin

operates as a receive data link clock or enable signal as programmed by control bit DLCK

(register address Y08).

0DLCK

(0)

Data Link Clock. If one, the TxDLC and RxDLC pins output a gapped clock. If zero, the

TxDLC and RxDLC pins output an active low enable signal. The above only applies for the

national bits enabled for DL pin operation (by the Sa4-8 bits of register address Y03). See

Figures 30 to 34.

Bit

Name

Functional Description

15-8

not used.

7-0

RXIDC

7-0

(0)

Receive Idle Code. This is the idle code that is sent on the DSTochannels if the per timeslot

control bit MPDR is set(Y90-YAF). Note that bit 7 is sent out first.

Table 151 - Receive Idle Code Register(Y09) (E1)

Bit

Name

Functional Description

15-8

not used.

7-0

TXIDC

7-0

(0)

Transmit Idle Code. This is the idle code that is sent on the PCM30 channels if the per timeslot

control bit MPDT is set(Y90-YAF)

Table 152 - Transmit Idle Code Register(Y0A) (E1)

Bit

Name

Functional Description

Table 150 - DataLink Control Register (R/W Address Y08) (E1)

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