Hitachi AP1 - 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-input
o--e-input
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"
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