LSI Logic Confidential
SIO Register Descriptions
15-33
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
LB
Last Byte
22
1 = A stop or repeat start condition is generated after the
current operation completes (all bytes in the TX FIFO are
transferred in master transmitter mode, or all bytes
received in the master receiver mode).
Software can set this bit before or after all bytes are
received or transmitted. However, if this bit is not set
when data transfer is complete, the IDC bus is held until
either the bit is set or more data is transferred.
This bit is used only in master mode.
FR
Flush RX Data Fifo
21
1 = Reset the receive data FIFO.
This bit clears itself and reads back as 0.
FT
Flush TX Data Fifo
20
1 = Reset the transmit data FIFO. This bit clears itself
and reads back as 0.
IE
Interrupt Enable
19
1 = Interrupts will be generated.
RS
Repeat Start
18
1 = Generate a Repeat Start at the end of the current
master mode operation (all bytes transmitted or all bytes
received).
ME
Master Enable
17
1 = Master mode reads/writes are enabled. Setting this
bit triggers the state machine to start a master mode
operation.
SE
Slave Enable
16
1 = Slave receive mode is enabled.
Note:
IDC master and slave modes are not mutually exclusive. In
master mode, DMN-8600 can initiate transfers. In slave
mode, it responds to transfers.