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10.2.3
Pin Functions
Port 1 pins also function as PPG output pins (PO15 to PO8), TPU I/O pins (TCLKA, TCLKB,
TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and
TIOCB2), DMAC output pins (DACK0 and DACK1), external interrupt input pins (IRQ0 and
IRQ1), 14-bit PWM output pins (PWM2 and PWM3), and address bus output pins (A23 to A20).
Port 1 pin functions are shown in table 10-3.
Table 10-3 Port 1 Pin Functions
Pin
P17/PO15/
TIOCB2/PWM3/
TCLKD
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
the TPU channel 2 setting (by bits MD3 to MD0 in TMDR2, bits IOB3 to IOB0
in TIOR2, and bits CCLR1 and CCLR0 in TCR2), bits TPSC2 to TPSC0 in
TCR0 and TCR5, OEB bit in DACR3, bit NDER15 in NDERH, and bit P17DDR.
TPU Channel
2 Setting
Table Below (1)
OEB
P17DDR
NDER15
Pin function
TIOCB2 output
Notes: 1. TIOCB2 input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 =
1.
2. TCLKD input when the setting for either TCR0 or TCR5 is: TPSC2
to TPSC0 = B'111.
TCLKD input when channels 2 and 4 are set to phase counting
mode.
TPU Channel
2 Setting
MD3 to MD0
B'0000, B'01xx
IOB3 to IOB0
B'0000
B'0100
B'1xxx
CCLR1,
CCLR0
Output
function
—
—
—
(2)
(1)
B'0010
B'0001 to
B'0011
B'0101 to
B'0111
—
—
—
Output
compare
output
Table Below (2)
0
0
0
1
—
0
P17
P17
input
output
TIOCB2 input *
2
TCLKD input *
(2)
(2)
—
B'xx00
—
—
than B'10
—
—
0
1
1
—
1
—
PO15
PWM3
output
output
1
(1)
(2)
B'0011
Other than B'xx00
Other
B'10
PWM
—
mode 2
output
x: Don't care
335
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