Spi Data Register - Spidr - Holtek HT32F50231 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F50231/HT32F50241
SPI Data Register – SPIDR
This register stores the SPI received or transmitted Data.
Offset: 0x010
Reset value: 0x0000_0000
31
Type/Reset
23
Type/Reset
15
Type/Reset RW 0 RW
7
Type/Reset RW 0 RW
Bits Field
[15:0] DR
Rev. 1.00
30 29 28
22 21 20
14 13 12
0 RW 0 RW
6 5 4
0 RW 0 RW
Descriptions
Data Register
The SPI data register is used to store the serial bus transmitted or received data.
In the non-FIFO mode, writing data into the SPI data register will also load the data
into the data transmission buffer, known as the TX buffer. Reading data from the SPI
data register will return the data held in the data received buffer, named RX buffer.
434 of 486
27 26
Reserved
19 18
Reserved
11 10
DR
0 RW 0 RW 0 RW
3 2
DR
0 RW 0 RW 0 RW
25 24
17 16
9 8
0 RW 0
1 0
0 RW 0
July 31, 2018