Datasheet

Section 8 I/O Ports
Rev.7.00 Dec. 24, 2008 Page 237 of 698
REJ09B0074-0700
Table 8.31 PA1 Pin Function
Operating mode Modes 4 to 6 Mode 7
AE3 to AE0 B'101× or
B'11××
Other than B'101× or B'11×× —
TE in SCR_2 — 0 1 0 1
PA1DDR — 0 1 — 0 1 —
Pin Function A17
output pin
PA1
input pin
PA1
output pin
TxD2
output pin
PA1
input pin
PA1
output pin
TxD2
output pin
Table 8.32 PA0 Pin Function
Operating
mode
Modes 4 to 6 Mode 7
AE3 to AE0 Other than
B'0××× or B'1000
B'0××× or B'1000 —
PA0DDR — 0 1 0 1
Pin Function A16 output pin PA0 input pin PA0 output pin PA0 input pin PA0 output pin
Legend:
×: Don't care.
Pin Functions of H8S/2212 Group
Port A pins also function as SCI_2 I/O pins. The correspondence between the register specification
and the pin functions is shown below.
Table 8.33 PA3 Pin Function
CKE1 in SCR_2 0 1
C/A in SMR_2 0 1 ⎯
CKE0 in SCR_2 0 1 ⎯ ⎯
PA3DDR 0 1 ⎯ ⎯ ⎯
Pin Function PA3 input
pin
PA3 output
pin
SCK2 output
pin
SCK2 output
pin
SCK2 input
pin