W83977ATF Datasheet, PDF (91/207 Pages) Winbond – WINBOND I/O

4.7.4 Set5.Reg4 - Infrared Configure Register 1 (IRCFG1)
Reg.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
IRCFG1
-
FSF_TH FEND_M AUX_RX
-
Reset Value
0
0
0
0
0
W83977ATF
PRELIMINARY
Bit 2
-
0
Bit 1
Bit 0
IRHSSL IR_FULL
0
0
Bit 7:
Bit 6:
Reserved, write 0.
FSF_TH - Frame Status FIFO Threshold
Set this bit to determine the frame status FIFO threshold level and to generate the
FSF_I. The threshold level values are defined as follows.
FSF_TH
0
1
Status FIFO Threshold Level
2
4
Bit 5:
Bit 4:
Bit 3~2:
Bit 1:
Bit 0:
FEND_MD - Frame End Mode
A write to 1 enables hardware to split data stream into equal length frame automatically
as defined in Set4.Reg4 and Set4.Reg5, i.e., TFRLL/TFRLH.
AUX_RX - Auxiliary Receiver Pin
A write to 1 selects IRRX input pin. (Refer to Set7.Reg7.Bit5)
Reserved, write 0.
IRHSSL - Infrared Handshake Status Select
When set to 0, the HSR (Handshake Status Register) operates the same as defined in IR
mode. A write to 1 will disable HSR, and reading HSR returns 30H.
IR_FULL - Infrared Full Duplex Operation
When set to 0, IR module operates in half duplex. A write to 1 makes IR module operate
in full duplex.
4.7.5 Set5.Reg5 - Frame Status FIFO Register (FS_FO)
This register shows the bottom byte of frame status FIFO.
Reg.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
FS_FO FSFDR LST_FR
-
MX_LEX PHY_ERR CRC_ERR RX_OV
Reset Value
0
0
0
0
0
0
0
Bit 0
FSF_OV
0
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Publication Release Date:April 1998
Revision 0.52