Datasheet

Section 10 I/O Ports
Rev. 6.00 Mar. 18, 2010 Page 314 of 982
REJ09B0054-0600
P11/TIOCB0/DACK1/A21
The pin functions are switched as shown below according to the combination of operating
mode, the TPU channel 0 setting, AE3 to AE0 bits in PFCR, the SAE1 bit*
3
in DMABCRH,
and the P11DDR bit.
Operating
mode Modes 4 to 6 Mode 7
AE3 to AE0 B'111x Other than B'111x
SAE1
*
3
0 1
TPU Channel 0
Setting
*
1
Output Input or Initial
Value
Output Input or Initial Value
P11DDR 0 1 0 1
Pin functions A21
output
pin
TIOCB0
output
pin
P11
input
pin
P11
output
pin
DACK1
*
3
output
pin
TIOCB0
output
pin
P11 input
pin
P11
output
pin
TIOCB0 input pin
*
2
TIOCB0 input pin
*
2
Notes: 1. For the setting of the TPU channel, see section 11, 16-Bit Timer Pulse Unit (TPU).
2. This pin functions as TIOCB0 input when TPU channel 0 timer operating mode is set to
normal operating and IOB3 to IOB0 in TIORH_0 are set to 10xx.
3. Supported only by the H8S/2239 Group.
P10/TIOCA0/DACK0/A20
The pin functions are switched as shown below according to the combination of operating
mode, the TPU channel 0 setting, AE3 to AE0 bits in PFCR, the SAE0 bit*
3
in DMABCRH,
and the P10DDR bit.
Operating
mode Modes 4 to 6 Mode 7
AE3 to AE0 B'1101 or
B'111x
Other than (B'1101 or B'111x)
SAE0
*
3
0 1
TPU Channel 0
Setting
*
1
Output Input or Initial
Value
Output Input or Initial Value
P10DDR 0 1 0 1
Pin functions A20
output
pin
TIOCA0
output
pin
P10
input
pin
P10
output
pin
DACK0
*
3
output
pin
TIOCA0
output
pin
P10 input
pin
P10
output
pin
TIOCA0 input pin
*
2
TIOCA0 input pin
*
2
Notes: 1. For the setting of the TPU channel, see section 11, 16-Bit Timer Pulse Unit (TPU).
2. This pin functions as TIOCA0 input when TPU channel 0 timer operating mode is set to
normal operating and IOA3 to IOA0 in TIORH_0 are set to 10xx.
3. Supported only by the H8S/2239 Group.