EM77950
BB Controller
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
TX
EMPTY
LINK_
DIS
LOCK
OUT
LOCK
IN
IER
CS
TX_AE
RX AF
RX_OF
Default Value: 0x00.
For all flags in this register, 0 : Disable
1 : 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’.
Product Specification (V1.0) 10.09.2007
(This specification is subject to change without further notice)
• 63
ELAN [ ELAN MICROELECTRONICS CORP ]
