TM4C129CNCZAD Datasheet, PDF (1443/1772 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C129CNCZAD Microcontroller
Register 15: I²C Slave Control/Status (I2CSCSR), offset 0x804
This register functions as a control register when written, and a status register when read.
Read-Only Status Register
I2C Slave Control/Status (I2CSCSR)
I2C 0 base: 0x4002.0000
I2C 1 base: 0x4002.1000
I2C 2 base: 0x4002.2000
I2C 3 base: 0x4002.3000
I2C 4 base: 0x400C.0000
I2C 5 base: 0x400C.1000
I2C 6 base: 0x400C.2000
I2C 7 base: 0x400C.3000
I2C 8 base: 0x400B.8000
I2C 9 base: 0x400B.9000
Offset 0x804
Type RO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
ACTDMARX ACTDMATX
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
QCMDRW QCMDST OAR2SEL FBR TREQ RREQ
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RC
RC
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31
Name
ACTDMARX
Type
RO
Reset
0
Description
DMA RX Active Status
Value Description
0 DMA RX is not active
1 DMA RX is active.
30
ACTDMATX
RO
0
DMA TX Active Status
Value Description
0 DMA TX is not active
1 DMA TX is active.
29:6
reserved
RO 0x0000.000 Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
5
QCMDRW
RC
0
Quick Command Read / Write
Value Description
0 Quick command was a write
1 Quick command was a read
This bit only has meaning when the QCMDST bit is set.
June 18, 2014
Texas Instruments-Production Data
1443