HD6432345 Datasheet, PDF (242/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

Table 8.5 Port 2 Pin Functions (cont)
Pin
P2₄/TIOCA4/
TMRI1
Selection Method and Pin Functions
This pin is used as the 8-bit timer counter reset pin when bits CCLR1 and
CCLR0 in TCR1 are both set to 1.
The pin function is switched as shown below according to the combination of
the TPU channel 4 setting by bits MD3 to MD0 in TMDR4, bits IOA3 to IOA0 in
TIOR4, bits CCLR1 and CCLR0 in TCR4, and bit P24DDR.
TPU Channel
4 Setting
Table Below (1)
Table Below (2)
P24DDR
—
0
1
Pin function
TIOCA4 output
P2₄ input
P2₄ output
TIOCA4 input *¹
TMRI1 input
TPU Channel
4 Setting
(2)
(1)
(2)
(1)
(1)
(2)
MD3 to MD0
B'0000, B'01xx B'001x B'0010
B'0011
IOA3 to IOA0
B'0000
B'0100
B'1xxx
B'0001 to
B'0011
B'0101 to
B'0111
B'xx00
Other than B'xx00
CCLR1,
CCLR0
—
—
—
—
Other B'01
than B'01
Output
function
—
Output
—
PWM PWM
—
compare
mode 1 mode 2
output
output*² output
x: Don’t care
Notes: 1. TIOCA4 input when TPU channel 4 is in normal operation mode
(MD3 to MD0 = B'0000) and input capture is set (IOA3 to IOA0 =
B'10xx).
2. TIOCB4 output is disabled.
225