IRCC2.0 datasheet(41/87 Pages) SMSC

41 / 87 page

frame size, 2) simplify multi-frame windowing if

the MFW bit=0 for transmit data blocks that are

larger than the maximum packet size and, 3)

constrain the SCE transmitter during loopback

testing. Note: Only the Tx Data Size register is

used for IrDA FIR loopback testing; only the Rx

Data Size register is required for Consumer IR

loopback tests.

If the Tx Data Size register is

zero when the MFW bit=0, the IrDA transmit

message size is unlimited; i.e., the transmitter

will operate until the FIFO is empty. The Tx Data

Size High register is the Tx Data Size high

nibble.

Tx Data Size Low (Address 4)

The Tx Data Size Low register is the Tx Data

Size low byte.

Rx Data Size High (Address 5)

Rx Data Size High, bits 0 - 3

The Rx Data Size register specifies the IrLAP-

negotiated maximum number of payload data

bytes per IrDA receive message frame.

This

frame for valid maximum data size and to

constrain the SCE receiver during Consumer IR

loopback testing. Note: Only the Rx Data Size

tests. If the Rx Data Size register is zero when

the MFW bit=0, the IrDA receive message size is

unlimited; i.e., a size error cannot occur because

frame size checking is disabled.

The Rx Data

Size High register is the Rx Data Size high

nibble.

Rx Data Size Low (Address 6)

The Rx Data Size Low register is the Rx Data

Size low byte.

IRCC2.0 Datasheet(PDF) 41 Page - SMSC Corporation