PCINT13 datasheet(185/294 Pages) ATMEL

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185

9219A–RFID–01/11

Atmel ATA5505 [Preliminary]

15.6.2

LIN Status and Interrupt Register - LINSIR

• Bits 7:5 - LIDST[2:0]: Identifier Status

– 0xx = no specific identifier,

– 100 = Identifier 60 (0x3C),

– 101 = Identifier 61 (0x3D),

– 110 = Identifier 62 (0x3E),

– 111 = Identifier 63 (0x3F).

• Bit 4 - LBUSY: Busy Signal

– 0 = Not busy,

– 1 = Busy (receiving or transmitting).

• Bit 3 - LERR: Error Interrupt

It is a logical OR of LINERR register bits. This bit generates an interrupt if its respective

enable bit - LENERR - is set in LINENIR.

–0 = No error,

– 1 = An error has occurred.

The user clears this bit by writing 1 in order to reset this interrupt. Resetting LERR also

resets all LINERR bits.

In UART mode, this bit is also cleared by reading LINDAT.

• Bit 2 - LIDOK: Identifier Interrupt

This bit generates an interrupt if its respective enable bit - LENIDOK - is set in LINENIR.

– 0 = No identifier,

– 1 = Slave task: Identifier present, master task: Tx Header complete.

The user clears this bit by writing 1, in order to reset this interrupt.

• Bit 1 - LTXOK: Transmit Performed Interrupt

This bit generates an interrupt if its respective enable bit - LENTXOK - is set in

LINENIR.

–0 = No Tx,

–1 = Tx Response complete.

The user clears this bit by writing 1, in order to reset this interrupt.

In UART mode, this bit is also cleared by writing LINDAT.

Bit

76543210

LIDST2

LIDST1

LIDST0

LBUSY

LERR

LIDOK

LTXOK

LRXOK

LINSIR

Read/Write

RRRR

R/Wone

Initial Value

00000000

PCINT13 Datasheet(PDF) 185 Page - ATMEL Corporation

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