ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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SPI Data Receive Register (SPIn_RX)
Register
Offset
R/W Description
Reset Value
SPI1_RX
0x30
R
SPI1 Data Receive Register
0x0000_0000
SPI2_RX
0x30
R
SPI2 Data Receive Register
0x0000_0000
31
30
29
28
27
26
25
24
RX
23
22
21
20
19
18
17
16
RX
15
14
13
12
11
10
9
8
RX
7
6
5
4
3
2
1
0
RX
Bits
Description
[31:0]
RX
Data Receive Register
There are 4-level FIFO buffers in this controller. The data receive register holds the data
received from SPI data input pin. If the RXEMPTY (SPIn_STATUS[8] or SPIn_I2SSTS[8])
is not set to 1, the receive FIFO buffers can be accessed through software by reading this
register. This is a read only register.