XC164-16 Datasheet, PDF (280/417 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller with C166SV2 Core Volume 2 (of 2): Peripheral Units

FIFO Status Register
XC164-16 Derivatives
Peripheral Units (Vol. 2 of 2)
Asynchronous/Synchronous Serial Interface (ASC)
ASCx_FSTAT
FIFO Status Register
ESFR (Table 19-13)
15 14 13 12 11 10 9 8 7 6 5
-
TXFFL
-
-
rh
-
Reset Value: 0000_H
43210
RXFFL
rh
Field
TXFFL
RXFFL
Bits
[11:8]
[3:0]
Type
rh
rh
Description
Transmit FIFO Filling Level
0000 Transmit FIFO is filled with zero bytes
0001 Transmit FIFO is filled with one byte
……
0111 Transmit FIFO is filled with seven bytes
1000 Transmit FIFO is filled with eight bytes
Note: TXFFL is cleared after a receive FIFO flush
operation.
Receive FIFO Filling Level
0000 Receive FIFO is filled with zero bytes
0001 Receive FIFO is filled with one byte
……
0111 Receive FIFO is filled with seven bytes
1000 Receive FIFO is filled with eight bytes
Note: RXFFL is cleared after a receive FIFO flush
operation.
User’s Manual
ASC_X, V2.0
19-55
V2.1, 2004-03