MT9079AC datasheet(22/54 Pages) MITEL

22 / 54 page

MT9079

4-258

Address

(A4A3A2A1A0)

Function

10H - 11H

Unused.

---

12H (Table 59)

Interrupt Vector

IV7 - IV0

13H - 17H

Unused

---

18H (Table 60)

Bit Error Rate Counter

BR7 - BR0

19H (Table 61)

RAI and Continuous CRC Error Counter

RCRC7 - RCRC0

1AH (Table 62)

Errored Frame Alignment Signal Counter

EFAS7 - EFAS0

1BH

Unused.

---

1CH (Table 63)

Most Significant Bipolar Violation Error

Counter

BPV15 - BPV8

1DH (Table 64)

Least Significant Bipolar Violation Error

Counter

BPV7 - BPV0

1EH (Table 65)

E-bit Error Counter EBt

EC7 - EC0

1FH (Table 66)

CRC-4 Error Counter CEt

CC7 - CC0

Table 11 - Master Status Words (Page 4)

Per Channel Transmit Signalling (Page 5)

Table 12 describes Page 05H, addresses 10001 to

11111, which contains the Transmit Signalling Control

Words for PCM 30 channels 1 to 15 and 16 to 30.

Control of these bits is through the processor or

controller port when the RPSIG bit is high.

After a RESET or RST function, this page will be

deselected (CSTi2 selected). RPSIG must be made

high before the page can be programmed.

Serial per channel transmit signalling control through

CSTi2 is selected when RPSIG is low. Table 13

describes the function of ST-BUS time slots 1 to 15,

Bit

Name

Functional Description

7 - 4

A(n),

B(n),

C(n)

D(n)

Transmit Signalling Bits for Channel

n. These bits are transmitted on the

PCM 30 2048 kbit/sec. link in bit

positions one to four of time slot 16 in

frame n (where n = 1 to 15), and are

the A, B, C, D signalling bits associ-

ated with channel n.

3 - 0

A(n+15),

B(n+15),

C(n+15)

D(n+15)

Transmit Signalling Bits for Channel

n + 15. These bits are transmitted on

the PCM 30 2048 kbit/sec. link in bit

positions five to eight of time slot 16

in frame n (where n = 1 to 15), and

are the A, B, C, D signalling bits

associated with channel n + 15.

Table 12 - Transmit Channel Associated Signalling

(Page 5)

and Table 14 describes the function of ST-BUS time

slots 17 to 31 of CSTi2.

Bit

Name

Functional Description

7 - 4

A(n),

B(n),

C(n)

D(n)

Transmit Signalling Bits for Channel

n. These bits are transmitted on the

PCM 30 2048 kbit/sec. link in bit

positions one to four of time slot 16 in

frame n (where n = 1 to 15), and are

the A, B, C, D signalling bits associ-

ated with channel n.

3 - 0

---

Unused.

Table 13 - Transmit CAS Channels 1 to 15 (CSTi2)

Bit

Name

Functional Description

7 - 4

A(n+15),

B(n+15),

C(n+15)

D(n+15)

Transmit Signalling Bits for Channel

n + 15. These bits are transmitted on

the PCM 30 2048 kbit/sec. link in bit

positions five to eight of time slot 16

in frame n (where n = 1 to 15), and

are the A, B, C, D signalling bits

associated with channel n + 15.

3 - 0

---

Unused.

Table 14 - Transmit CAS Channels 16 to 30 (CSTi2)

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