LM3S316 Datasheet, PDF (293/421 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S316 Data Sheet
Register 4: SSI Status (SSISR), offset 0x00C
SSISR is a status register that contains bits that indicate the FIFO fill status and the SSI busy
status.
SSI Status (SSISR)
Offset 0x00C
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
BSY RFF RNE TNF TFE
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Bit/Field
31:5
4
Name
reserved
BSY
3
RFF
2
RNE
1
TNF
0
TFE
Type
RO
RO
RO
RO
RO
R0
Reset
0
0
0
0
1
1
Description
Reserved bits return an indeterminate value, and should
never be changed.
SSI Busy Bit
0: SSI is idle.
1: SSI is currently transmitting and/or receiving a frame, or the
transmit FIFO is not empty.
SSI Receive FIFO Full
0: Receive FIFO is not full.
1: Receive FIFO is full.
SSI Receive FIFO Not Empty
0: Receive FIFO is empty.
1: Receive FIFO is not empty.
SSI Transmit FIFO Not Full
0: Transmit FIFO is full.
1: Transmit FIFO is not full.
SSI Transmit FIFO Empty
0: Transmit FIFO is not empty.
1: Transmit FIFO is empty.
April 27, 2007
293
Preliminary