MT8924 Просмотр технического описания (PDF) - Mitel Networks

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производитель

MT8924

PCM Conference Circuit (PCC)

Mitel Networks 

MT8924

Preliminary Information

Instruction 5 : PCM Operating Mode Selection

Control Signals

Data Bus

Comments

CS RD C/D WR D7 D6 D5 D4 D3 D2 D1 D0

0 1 1 0 X E F1 F0 0 1 0 1 see Table 1

E:

F1 - F0:

Extra bit insertion (active when E=1)

PCM byte format selection (see Table 1)

00 = no bit inverted

01 = even bit (B0, B2, B4, B6) inverted

10 = odd bit (B1, B3, B5) inverted

11 = all bits (B0, B1, B2, B3, B4, B5, B6) inverted

Instruction 6 : Status Monitoring

Control Signals

Data Bus

Comments

CS RD C/D WR D7 D6 D5 D4 D3 D2 D1 D0

0 1 0 0 X X X C4 C3 C2 C1 C0

0 1 1 0XXXX0 1 1 0

0 0 1 1 P3 P2 P1 P0 A1 A0 T1 T0

P3 - P0:

Note:

channel mode operation information

0000 = no connection

1111 = transparent mode

1010 - 0001 = conference mode

P3 - P0 provides conference number

A1 - A0:

T1 - T0:

see channel attenuation description

for Instruction 1

see noise suppression description

for Instruction 1

Instruction 6 enables the data bus to read the status until reset by C/D=0, WR=1, and CS=0

8-10

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