Datasheet

Section 10A I/O Ports
(H8S/2633, H8S/2632, H8S/2631, H8S/2633R)
Page 412 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
10A.7.3 Pin Functions
Port A pins also function as SCI input/output pins (TxD2, RxD2, SCK2) and address bus output
pins (A19 to A16). Port A pin functions are shown in table 10A.11.
Table 10A.11 Port A Pin Functions
Pin Selection Method and Pin Functions
PA3/A19/SCK2 The pin function is switched as shown below according to the operating mode,
bits AE3 to AE0 in PFCR, bit C/A in SMR and bits CKE0 and CKE1 in SCR of
SCI2, and bit PA3DDR.
Operating mode Modes 4 to 6
AE3 to AE0 B'0000 to B'1011 B'1100 to B'1111
CKE1 0 1 —
C/A 0 1 — —
CKE0 0 1 — — —
PA3DDR 0 1 — — — —
Pin function PA3
input
PA3
output
SCK2
output
SCK2
output
SCK2
input
A19 output
Operating mode Mode 7
CKE1 0 1
C/A 0 1 —
CKE0 0 1 — —
PA3DDR 0 1 — — —
Pin function PA3
input
PA3
output
SCK2
output
SCK2
output
SCK2
input