D12320VF25IV Datasheet, PDF (403/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
Pin
P22/PO2/TIOCC3/
TMRI0
Selection Method and Pin Functions
This pin is used as the 8-bit timer counter reset pin when bits CCLR1 and
CCLR0 in TCR0 are both set to 1.
The pin function is switched as shown below according to the combination of
the TPU channel 3 setting (by bits MD3 to MD0 in TMDR3, bits IOC3 to IOC0
in TIOR3L, and bits CCLR2 to CCLR0 in TCR3), bit NDER2 in NDERL, and bit
P22DDR.
TPU Channel
3 Setting
Table Below (1)
Table Below (2)
P22DDR
—
0
1
1
NDER2
—
—
0
1
Pin function
TIOCC3 output
P22
input
P22
output
PO2
output
TIOCC3 input^*1
TMRI0 input
TPU Channel
3 Setting
(2)
(1)
(2)
(1)
(1)
(2)
MD3 to MD0
B'0000
B'001x B'0010
B'0011
IOC3 to IOC0
B'0000
B'0100
B'1xxx
B'0001 to
B'0011
B'0101 to
B'0111
B'xx00
Other than B'xx00
CCLR2 to
CCLR0
—
—
—
—
Other B'101
than
B'101
Output
function
—
Output
—
PWM PWM
—
compare
output
mode 1 mode 2
output^*2 output
x: Don’t care
Notes: 1. TIOCC3 input when MD3 to MD0 = B'0000, and IOC3 to IOC0 =
B'10xx.
2. TIOCD3 output is disabled.
When BFA = 1 or BFB = 1 in TMDR3, output is disabled and setting
(2) applies.
Rev.6.00 Sep. 27, 2007 Page 371 of 1268
REJ09B0220-0600