Spi Fifo Status Register - Spifsr - Holtek HT32F52220 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F52220/HT32F52230
SPI FIFO Status Register – SPIFSR
This register contains the relevant SPI FIFO status.
Offset: 0x01C
Reset value: 0x0000_0000
31
Type/Reset
23
Type/Reset
15
Type/Reset
7
Type/Reset RO 0 RO
Bits Field
[7:4] RXFS
[3:0] TXFS
Rev. 1.10
30 29 28
22 21 20
14 13 12
6 5 4
RXFS
0 RO 0 RO
Descriptions
RX FIFO Status
0000: RX FIFO empty
0001: RX FIFO contains 1 data
...
1000: RX FIFO contains 8 data
Others: Reserved
TX FIFO Status
0000: TX FIFO empty
0001: TX FIFO contains 1 data
...
1000: TX FIFO contains 8 data
Others: Reserved
324 of 366
27 26
Reserved
19 18
Reserved
11 10
Reserved
3 2
0 RO 0 RO 0 RO
25 24
17 16
9 8
1 0
TXFS
0 RO 0
November 09, 2018