Datasheet

Section 10 I/O Ports
Rev. 6.00 Mar. 18, 2010 Page 326 of 982
REJ09B0054-0600
• P71/TMRI23/TMCI23/DREQ1/CS5
The pin functions are switched as shown below according to the combination of operating
mode and the P71DDR bit.
Operating
mode
Modes 4 to 6 Mode 7
P71DDR 0 1 0 1
Pin functions P71 input pin CS5 output pin P71 input pin P71 output pin
TMRI23
*
1
,
TMCI23
*
1
,
DREQ1
*
2
input pin
⎯ TMRI23
*
1
, TMCI23
*
1
, DREQ1
*
2
input
pin
Notes: 1. Not available in the H8S/2237 Group and H8S/2227 Group.
2. Supported only by the H8S/2239 Group.
• P70/TMRI01/TMCI01/DREQ0/CS4
The pin functions are switched as shown below according to the combination of operating
mode and the P70DDR bit.
Operating
mode
Modes 4 to 6 Mode 7
P70DDR 0 1 0 1
Pin functions P70 input pin CS4 output pin P70 input pin P70 output pin
TMRI01,TMCI01,
DREQ0
*
input pin
⎯ TMRI01,TMCI01, DREQ0
*
input pin
Note: * Supported only by the H8S/2239 Group.