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(24) SIR Register (ISIRR)
Address: H'10007120 (Read/ Write)
Bit
7
Bit Name
-
Initial Value
-
R/W
-
Bit
Description
7 - 2
Reserved
1
SIR Loop-back (SLOOP)
Sets this bit to 1 to enable SIR loop back mode. Sets this bit to 0 to enable SIR Normal
mode.
0
SIR Module Select (SIRMOD)
Sets this bit to 1, IrDA module only supports HP-SIR modulation and uses low frequency
(SIR-CLK 1.8432MHz) clock. Sets this bit to 0, IrDA module supports 4M mode, and uses
IRCLK (48MHz) clock.
(25) FIR Configuration Register (IFIRCR)
Address: H'100071E0 (Read/ Write)
Bit
7
Bit Name
-
Initial Value
-
R/W
-
Bit
Description
7 - 3
Reserved
2
RX2# Pull_up (RX2_PP)
Setting this bit to 1 enables the pull-up function for MODSEL/RX2#.
Setting this bit to 0 disables the pull-up function for MODSEL/RX2#.
1
RX# Pull_up (RX_PP)
Setting this bit to 1 enables the pull-up function for RX#.
Setting this bit to 0 disables the pull-up function for RX#.
0
Transceiver Mode (TMODE)
When this bit is set to '1', IBM-mode transceiver is supported.
When this bit is reset to '0', HP-mode transceiver is supported.
6
5
4
-
-
-
-
-
-
-
-
-
6
5
4
-
-
-
-
-
-
-
-
-
3
2
1
-
-
SLOOP
-
-
0
-
-
R/W
3
2
1
-
RX2_PP RX_PP
-
0
0
-
R/W
R/W
Rev. 3.0, 03/01, page 151 of 390
0
SIRMOD
1
R/W
Default
-
0
1
0
TMODE
0
R/W
Default
0
0
0
0
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