Texas Instruments CC2650DK 사용자 설명서
I
2
C Registers
21.5.1.12 MDR Register (Offset = 808h) [reset = X]
MDR is shown in
and described in
Master Data This register contains the data to be transmitted when in the Master Transmit state and the
data received when in the Master Receive state.
data received when in the Master Receive state.
Figure 21-25. MDR Register
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RESERVED
DATA
R-X
R/W-X
Table 21-14. MDR Register Field Descriptions
Bit
Field
Type
Reset
Description
31-8
RESERVED
R
X
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
other value than the reset value may result in undefined behavior.
7-0
DATA
R/W
X
When Read: Last RX Data is returned When Written: Data is
transferred during TX transaction
transferred during TX transaction
1404
SWCU117A – February 2015 – Revised March 2015
Inter-Integrated Circuit (I
2
C) Interface
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