EM77950 datasheet(71/102 Pages) EMC

71 / 102 page

EM77950

BB Controller

Product Specification (V1.0) 10.09.2007

• 63

(This specification is subject to change without further notice)

8.4 Interrupt Registers

8.4.1 Interrupt Enable Register (IER)

This register is a write and a read register.

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

IER

TX_AE

RX AF

EMPTY

RX_OF

LINK_

DIS

LOCK

OUT

LOCK

Default Value:

0x00.

For all flags in this register, 0 : Disable

: Enable

Bit 0:

LOCK_IN

This flag enables/disables the LOCK IN interrupt.

PREAMBLE + NODE_ID + NET_ID identified correctly triggers LOCK IN

interrupt.

Bit 1:

LOCK_OUT

This flag enables/disables the LOCK OUT interrupt.

End of received packet triggers LOCK_OUT interrupt.

Bit 2:

LINK_DIS

This flag enables/disables the LINK_DIS interrupt.

The zero counter capacitor discharge triggers the LINK_DIS interrupt.

Bit 3:

RX_OF

This flag enables/disables the RX_OF interrupt.

End of received packet triggers RX_OF interrupt.

Bit 4:

TX_EMPTY

This flag enables/disables the TX_EMPTY (Transmitter Empty) interrupt.

X_EMPTY interrupt tells the MCU that the transmitter has just finished

transmitting a packet. BB goes to RX mode after finishing the transmission of a

packet.

Bit 5:

RX_AF

This flag enables/disables the RX_AF interrupt.

The RX_AF interrupt is triggered when RX_FIFO AF flag goes from ‘0’ to ‘1’.

Bit 6:

TX_AE

This flag enables/disables the TX_AE interrupt.

The TX_AE interrupt is triggered when TX_FIFO AE flag goes from ‘0’ to ‘1’.

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