203
Bits 7 and 6—Reserved: These bits cannot be modified and are always read as 1.
Bit 5—Master Enable TOCXB
4
(EXB4): Enables or disables ITU output at pin TOCXB
4
.
Bit 5
EXB4
Description
0
TOCXB
4
output is disabled regardless of TFCR settings (TOCXB
4
operates as a generic
input/output pin). If XTGD = 0, EXB4 is cleared to 0 when input capture A occurs in
channel 1.
1
TOCXB
4
is enabled for output according to TFCR settings
(Initial value)
Bit 4—Master Enable TOCXA
4
(EXA4): Enables or disables ITU output at pin TOCXA
4
.
Bit 4
EXA4
Description
0
TOCXA
4
output is disabled regardless of TFCR settings (TOCXA
4
operates as a generic
input/output pin).
If XTGD = 0, EXA4 is cleared to 0 when input capture A occurs in channel 1.
1
TOCXA
4
is enabled for output according to TFCR settings
(Initial value)
Bit 3—Master Enable TIOCB
3
(EB3): Enables or disables ITU output at pin TIOCB
3
.
Bit 3
EB3
Description
0
TIOCB
3
output is disabled regardless of TIOR3 and TFCR settings (TIOCB
3
operates as
a generic input/output pin).
If XTGD = 0, EB3 is cleared to 0 when input capture A occurs in channel 1.
1
TIOCB
3
is enabled for output according to TIOR3 and TFCR settings
(Initial value)
Bit 2—Master Enable TIOCB
4
(EB4): Enables or disables ITU output at pin TIOCB
4
.
Bit 2
EB4
Description
0
TIOCB
4
output is disabled regardless of TIOR4 and TFCR settings (TIOCB
4
operates as
a generic input/output pin).
If XTGD = 0, EB4 is cleared to 0 when input capture A occurs in channel 1.
1
TIOCB
4
is enabled for output according to TIOR4 and TFCR settings
(Initial value)