LSI Logic Confidential
15-34
Serial I/O Port
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
IDC Status Register (IDC_STATUS1)
Offset = 0xBE0084
Read Only
Default = 0x0000 0000
This register is cleared when read. During the IDC interrupt service
routine, the host must read this register. If this register is not read,
subsequent IDC events cannot set it.
lists the conditions that
affect this register.
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reserved
LA
SN
TxE
SD
RS
SAd
MI
SI
NAK
AK
RxR
Gen
CSO
15
0
Reserved
Table 15.6
Status Register Events
Mode
Condition
Master-Transmitter
Tx FIFO is empty and the LB bit of IDC_Control1 is clear.
Tx FIFO is empty, the LB bit of IDC_Control1 is set, and the STOP condition
has been generated.
No acknowledge was received after transmitting the slave address on the bus.
Master-Receiver
The number of bytes in the Byte2Rd field of IDC_Control1 has been read and
the LB bit is cleared.
The number of bytes in the Byte2Rd field of IDC_Control1 has been read, the
LB bit is set, and the STOP condition has been generated.
Rx FIFO is full.