Datasheet

Table Of Contents
Section 9 I/O Ports
REJ09B0140-0900 Rev. 9.00 Page 251 of 846
Sep 16, 2010
H8S/2215 Group
9.6.6 Pin Functions
Port A pins also function as address bus (A19 to A16) output, external USB transceiver output,
SCI_2 I/O, and interrupt input. The correspondence between the register specification and the pin
functions is shown below.
Table 9.22 PA3 Pin Function
Operating mode Modes 4 to 6
AE3 to AE0 11xx Other than 11xx
FADSEL of UCTLR 0 1
CKE1 in SCR_2 0 1
C/A in SMR_2 0 1
CKE0 in SCR_2 0 1
PA3DDR 0 1 — — —
Pin function A19 output PA3
input
PA3
output
SCK2
output
SCK2
output
SCK2
input
SUSPND
output
Operating mode Mode 7
AE3 to AE0
FADSEL of UCTLR
*
0 1
*
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
PA3
output
SCK2
output
SCK2
output
SCK2
input
SUSPND
output
*
Note: * On-chip USB cannot be used in mode 7.