Hitachi AP1 Data Book page 322

HMCS404AC------------------------------------------------------------------------
Without pull-up MOS (NMOS open drain)
With pull-up MOS (8) Appl ied pins
or CMOS (A or C)
SCK
SCK
HLT
I/O
Vee
HLT
V"~
common
H L T +mode select
0-l1
HL T +mod.
~'~
SCK
pins
0-
~
;'''m'' SCK
internal SCK
II>
~::T
t:
Vee
'Q.
"E
Output
~~::T
co
SO
-0
pins
t:
co
en
Input
INTo,
pins
INTI,
o - - e - i n p u t
o - - e - i n p u t
SI
data
data
HLT
HLT
(Note) In the stop mode, HL T signal is "0", HL T signal is "1" and I/O pins are in high impedance state.
Table 18 Data Input from Input/Output Common Pins
I/O pin circuit type
Possibi lity Available pin condition
of Input
for input
CMOS
No
-
Standard
Without pull-up
pins
MOS
Yes
"1"
(NMOS open drain)
With pull-up MOS Yes "1"
Without pull-down
High MOS Yes
"0"
voltage (PMOS open drain)
pins
With pull-down
MOS
Yes
"0"
320