Table 9-21 Port B Pin Functions (cont)
Pin
Pin Functions and Selection Method
ITU channel 4 settings (bit CMD1 in TFCR, bit EA4 in TOER, bit PWM4 in TMDR, and
bits IOA2 to IOA0 in TIOR4), bit NDER10 in NDERB, and bit PB
2
DDR in PBDDR select
the pin function as follows
ITU
channel 4
settings
(1) in table below
(2) in table below
PB
2
DDR
—
0
1
1
NDER10
—
—
0
1
Pin function
TIOCA
4
output
PB
2
input
PB
2
output TP
10
output
TIOCA
4
input
*
Note:
*
TIOCA
4
input when CMD1 = PWM4 = 0 and IOA2 = 1.
ITU
channel 4
settings
(2)
(2)
(1)
(2)
(1)
EA4
0
1
CMD1
—
0
1
PWM4
—
0
1
—
IOA2
—
0
0
0
1
—
—
IOA1
—
0
0
1
—
—
—
IOA0
—
0
1
—
—
—
—
PB
2
/
TP
10
/
TIOCA
4
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