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IDT821068

OCTAL PROGRAMMABLE PCM CODEC

Integrated Device Technology 

IDT821068 OCTAL PROGRAMMABLE PCM CODEC

Master Device

MX

Monitor

Transmitter MR

DD

DU

MR

Monitor

Receiver

MX

INDUSTRIAL TEMPERATURE RANGE

IDT821068

MX

Monitor

MR

Receiver

MR

Monitor

MX

Transmitter

Figure 6. Monitor Channel Operation

MR or MXR

Idle

MX = 1

MR and MXR

MR and RQT

1st Byte

MX = 0

MR and RQT

MR and RQT

Wait

MX = 1

MXR

MR and MXR

MR

EOM

MR

MX = 1

Abort

MX = 1

nth Byte ACK

MR

MX = 1

MR

MR and RQT

Wait for ACK

MX = 0

MR and RQT

CLS/ABT

MR: MR bit received on DD

MX: MX bit calculated and expected on DU

MXR: MX bit sampled on DU

CLS: Collision within the monitor data byte on DU

RQT: Request for transmission from internal source

ABT: Abort request/indication

Any State

Figure 7. State Diagram of Monitor Transmitter

10

Initial

State

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