MT9300AL datasheet(21/29 Pages) MITEL

Nome de Peças	MT9300AL

Descrição Electrónicos	Multi-Channel Voice Echo Canceller

PDF	29 Pages

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Fabricante Electrônico	MITEL [Mitel Networks Corporation]

Página de início	http://www.mitel.com

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MT9300

Bit

Name

Description

IRQ

Logic high indicates an interrupt has occurred. IRQ bit is cleared after the Interrupt

FIFO register is read.

Logic Low indicates that no interrupt is pending and the FIFO is empty.

6:5

Unused bits. Always zero

4:0

I<4:0>

I<4:0> binary code indicates the channel number at which a Tone Detector state

change has occurred.

Note: Whenever a Tone Disable is detected or released, an interrupt is generated.

Bit

Name

Description

7:1

res

Reserved bits. Must always be set to zero for normal operation.

Tirq

Test IRQ: Useful for the application engineer to verify the interrupt service routine.

When high, any change to MTDBI and MTDAI bits of the Main Control Register will

cause an interrupt and its corresponding channel number will be available from the

Interrupt FIFO Register.

When low, normal operation is selected.

Interrupt FIFO Register

IRQ

76543210

Reset Value:

00H.

Read Address:

410H (Read only)

Test Register

Tirq

res

76543210

Reset Value:

00H.

Read/Write Address: 411H

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