Intel 8XC196NP manual Default Conditions, Table B-4. Definition of Status Symbols, Reset# Np/Nu

Models: Microcontroller 80C196NU 8XC196NP

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SIGNAL DESCRIPTIONS

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 VOL, VIL, VOH, and VIH.

Table B-4. Definition of Status Symbols

Symbol

Definition

 

Symbol

Definition

 

 

 

 

 

0

Voltage less than or equal to VOL, VIL

 

MD0

Medium pull-down

1

Voltage greater than or equal to VOH, VIH

 

MD1

Medium pull-up

HiZ

High impedance

 

WK0

Weak pull-down

LoZ0

Low impedance; strongly driven low

 

WK1

Weak pull-up

LoZ1

Low impedance; strongly driven high

 

ODIO

Open-drain I/O

Table B-5. 8XC196NP and 80C196NU Pin Status

 

 

 

Upon

 

Power-

 

 

 

Multiplexed

During

 

down

 

 

 

RESET#

 

(NP/NU)

 

Bus

Port Pins

RESET#

Idle

Hold

With

Inactive

and

Idle

 

Active

 

 

 

 

(Note 11)

 

Standby

 

 

 

 

 

 

 

 

 

 

 

 

 

(NU only)

 

 

 

 

 

 

 

 

 

 

P1.3:0

EPA3:0

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P1.4

T1CLK

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P1.5

T1DIR

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P1.6

T2CLK

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P1.7

T2DIR

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P2.0

TXD

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P2.1

RXD

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P2.2

EXTINT0

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P2.3

BREQ#

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P2.4

EXTINT1

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P2.5

HOLD#

WK1

WK1

(Note 1)

(Note 1)

Force 0

P2.6

HLDA#

WK1

WK1

(Note 1)

(Note 1)

0

P2.7

CLKOUT

CLKOUT

CLKOUT

(Note 1)

(Note 2)

(Note 1)

 

 

active;

active;

 

 

 

 

 

 

LoZ0/1

LoZ0/1

 

 

 

 

P3.0

CS0#

WK1

1 (NP only)

(Note 3)

(Note 3)

(Note 4)

 

 

 

0 (NU only)

 

 

 

 

P3.5:1

CS5:1#

WK1

WK1

(Note 3)

(Note 3)

(Note 4)

P3.6

EXTINT2

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P3.7

EXTINT3

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

P4.2:0

PWM2:0

WK1

WK1

(Note 1)

(Note 1)

(Note 1)

B-13

Page 388
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Intel 8XC196NP Default Conditions, Table B-4. Definition of Status Symbols, Table B-5 XC196NP and 80C196NU Pin Status