I2C Registers
21.4.1.9 I2C_DMARXENABLE_SET Register (offset = 38h) [reset = 0h]
I2C_DMARXENABLE_SET is shown in
and described in
The 1-bit field enables a receive DMA request. Writing a 1 to this field will set it to 1. Writing a 0 will have
no effect, that is, the register value is not modified. Note that the I2C_BUF.RDMA_EN field is the global
(slave) DMA enabler, and that it is disabled by default. The I2C_BUF.RDMA_EN field should also be set
to 1 to enable a receive DMA request.
Figure 21-24. I2C_DMARXENABLE_SET Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
Reserved
DMARX_ENABLE_SE
T
R-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 21-17. I2C_DMARXENABLE_SET Register Field Descriptions
Bit
Field
Type
Reset
Description
31-1
Reserved
R
0h
0
DMARX_ENABLE_SET
R/W
0h
Receive DMA channel enable set.
3736
I2C
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated