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B.3
DEFAULT CONDITIONS
Table B-5 lists the default functions of the I/O and control pins of the 8XC196NP and 80C196NU
with their values during various operating conditions. Table B-4 defines the symbols used to rep-
resent the pin status. Refer to the DC Characteristics table in the datasheet for actual specifica-
tions for V
, V
, V
, and V
OL
IL
OH
Symbol
0
Voltage less than or equal to V
1
Voltage greater than or equal to V
HiZ
High impedance
LoZ0
Low impedance; strongly driven low
LoZ1
Low impedance; strongly driven high
Multiplexed
Port Pins
With
P1.3:0
EPA3:0
P1.4
T1CLK
P1.5
T1DIR
P1.6
T2CLK
P1.7
T2DIR
P2.0
TXD
P2.1
RXD
P2.2
EXTINT0
P2.3
BREQ#
P2.4
EXTINT1
P2.5
HOLD#
P2.6
HLDA#
P2.7
CLKOUT
P3.0
CS0#
P3.5:1
CS5:1#
P3.6
EXTINT2
P3.7
EXTINT3
P4.2:0
PWM2:0
.
IH
Table B-4. Definition of Status Symbols
Definition
, V
OL
IL
, V
OH
IH
Table B-5. 8XC196NP and 80C196NU Pin Status
Upon
During
RESET#
RESET#
Inactive
Active
(Note 11)
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
CLKOUT
CLKOUT
active;
active;
LoZ0/1
LoZ0/1
WK1
1 (NP only)
0 (NU only)
WK1
WK1
WK1
WK1
WK1
WK1
WK1
WK1
SIGNAL DESCRIPTIONS
Symbol
MD0
Medium pull-down
MD1
Medium pull-up
WK0
Weak pull-down
WK1
Weak pull-up
ODIO
Open-drain I/O
Power-
down
(NP/NU)
Idle
and
Standby
(NU only)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 2)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
Definition
Bus
Hold
Idle
(Note 1)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
Force 0
—
0
—
(Note 1)
—
(Note 4)
—
(Note 4)
—
(Note 1)
—
(Note 1)
—
(Note 1)
—
B-13
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