Renesas H8S/2318 series, Hardware Manual

Page: 264 / 1121

Rev. 5.00, 12/03, page 234 of 1088
After a reset and in hardware standby mode, PORT2 contents are determined by the pin states, as
P2DDR and P2DR are initialized. PORT2 retains its prior state after in software standby mode.
8.3.3 Pin Functions
Port 2 pins also function as TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4,
TIOCB4, TIOCA5, and TIOCB5), and 8-bit timer I/O pins (TMRI0, TMCI0, TMO0, TMRI1,
TMCI1, and TMO1). Port 2 pin functions are shown in table 8-5.
Table 8-5 Port 2 Pin Functions
Pin Selection Method and Pin Functions
P27/TIOCB5/
TMO1 The pin function is switched as shown below according to the combination of
the TPU channel 5 setting by bits MD3 to MD0 in TMDR5, bits IOB3 to IOB0 in
TIOR5, bits CCLR1 and CCLR0 in TCR5, bits OS3 to OS0 in TCSR1, and bit
P27DDR.
OS3 to OS0 All 0 Any 1
TPU Channel
5 Setting Table
Below (1) Table Below (2) —
P27DDR — 0 1 —
Pin function TIOCB5
output
P27 input P27 output TMO1 output
TIOCB5 input
*
TPU Channel
5 Setting
(2) (1) (2) (2) (1) (2)
MD3 to MD0 B'0000, B'01
××
B'0010 B'0011
IOB3 to IOB0 B'0000
B'0100
B'1
×××
B'0001 to
B'0011
B'0101 to
B'0111
— B'
××
00 Other than B'
××
00
CCLR1,
CCLR0 — — — — Other
than B'10
B'10
Output
function — Output
compare
output
— — PWM
mode 2
output
—
×
: Don’t care
Note: * TIOCB5 input when MD3 to MD0 = B'0000 or B'01
××
and IOB3 = 1.