Status register – Samsung S3F401F User Manual

Page 219

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SSP

S3F401F_UM_REV1.00

10-18

Status Register

SSPSR (0x00C)

Access: Read Only

31 30 29 28 27 26 25 24

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

23 22 21 20 19 18 17 16

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

15 14 13 12 11 10 9 8

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

7 6 5 4 3 2 1 0

BSY

RFF

RNE

TNF

TFE

R-0 R-0 R-0 R-0 R-0 R-0 R-1 R-1

W: Write

R: Read

-0: 0 After reset

-1: 1 After reset

-U: Undefined after reset

TFE

Transmit FIFO Empty Status Bit

0 = Transmit FIFO is not empty

1 = Transmit FIFO is empty

TNF

Transmit FIFO Full Status Bit

0 = Transmit FIFO is full

1 = Transmit FIFO is not full

RNE

Receive Empty Status Bit

0 = Receive FIFO is empty

1 = Receive FIFO is not empty

RFF

Receive FIFO Full Status Bit

0 = Receive FIFO is not full

1 = Receive is full

BSY

Prime-Cell SSP Busy Flag Bit

0 = SSP is idle

1 = SSP is currently transmitting and/or receiving a frame or the transmit FIFO is not empty.

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