h8s2277 Renesas Electronics Corporation., h8s2277 Datasheet - Page 219

• Manufacturer Part Number: h8s2277
• Description: Hitachi Single-chip Microcomputer H8s/2276 Series
• Manufacturer: Renesas Electronics Corporation.

9.2.3
Port 1 pins also function as TPU I/O pins (TCLKA, TCLKB, TIOCA0, TIOCB0, TIOCC0,
TIOCD0, TIOCA1, and TIOCA2), external interrupt input pins (IRQ0 and IRQ1), and address
output pins (A23 to A20). Port 1 pin functions are shown in table 9.3.
Table 9.3
Pin
P16/
TIOCA2/
IRQ1
Pin Functions
Pin Functions and Selection Method
The pin function is switched as shown below according to the combination of the TPU
channel 2 settings (bits MD3 to MD0 in TMDR2, bits IOA3 to IOA0 in TIOR2, and bits
CCLR1 and CCLR0 in TCR2) and bit P16DDR.
Notes: *1 TIOCA2 input when MD3 to MD0 = B'0000 or B'01xx and IOA3 = 1.
Port 1 Pin Functions
TPU channel 2
settings
P16DDR
Pin function
TPU channel 2
settings
MD3 to MD0
IOA3 to IOA0
CCLR1, CCLR0
Output function
*2 When used as an external interrupt pin, do not use for another function.
B'0000
B'0100
B'1xxx
(2)
—
—
TIOCA2 output
in table below
B'0000, B'01xx
B'0001 to B'0011
B'0101 to B'0111
Output compare
(1)
—
output
(1)
—
IRQ1 input*
B'001x B'0010
B'xx00
P16 input
(2)
—
—
0
mode 1
B'xx00
output
Other
PWM
TIOCA2 input*
than
in table below
(1)
—
2
(2)
PWM mode 2
Other than
Other than B'xx00
output
B'01
(1)
P16 output
1
B'0011
x: Don’t care
1
B'01
(2)
—
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