Datasheet

Section 10 I/O Ports
Rev. 6.00 Mar. 18, 2010 Page 325 of 982
REJ09B0054-0600
• P74/TMO2/MRES
The pin functions are switched as shown below according to the combination of OS3 to OS0
bits in TCSR_2 of TMR_2*, the MRESE bit in SYSCR, and the P74DDR bit.
MRESE 0 1
OS3 to OS0
*
All bits are 0 Any bit is 1 ⎯
P74DDR 0 1 ⎯ 0
Pin functions P74 input pin P74 output pin TMO2
*
output MRES input
Note: * Not available in the H8S/2237 Group and H8S/2227 Group.
• P73/TMO1/TEND1/CS7
The pin functions are switched as shown below according to the combination of operating
mode, the TEE1 bit in DMATCR of DMAC*, OS3 to OS0 bits in TCSR_1 of TMR_1, and the
P73DDR bit.
Operating
mode
Modes 4 to 6 Mode 7
TEE1
*
0 1 0 1
OS3 to OS0 All bits are 0 Any bit
is 1
⎯ All bits are 0 Any bit
is 1
⎯
P73DDR 0 1 ⎯ ⎯ 0 1 ⎯ ⎯
Pin functions P73
input
pin
CS7
output
pin
TMO1
output
pin
TEND1
*
output
pin
P73
input
pin
P73
output
pin
TMO1
output
pin
TEND1
*
output
pin
Note: * Supported only by the H8S/2239 Group.
• P72/TMO0/TEND0/CS6
The pin functions are switched as shown below according to the combination of operating
mode the TEE0 bit in DMATCR of DMAC*, OS3 to OS0 bits in TCSR_0 of TMR_0, and the
P72DDR bit.
Operating
mode
Modes 4 to 6 Mode 7
TEE0
*
0 1 0 1
OS3 to OS0 All bits are 0 Any bit
is 1
⎯ All bits are 0 Any bit
is 1
⎯
P72DDR 0 1 ⎯ ⎯ ⎯ ⎯ ⎯
Pin functions P72
input
pin
CS6
output
pin
TMO0
output
pin
TEND0
*
output
pin
P72
input
pin
P72
output
pin
TMO0
output
pin
TEND0
*
output
pin
Note: * Supported only by the H8S/2239 Group.