UT80C196KDS-WCC Ver la hoja de datos (PDF) - Aeroflex UTMC

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UT80C196KDS-WCC

UT80C196KDS Microcontroller

Aeroflex UTMC 

Table 9: External I/O Reset State

External I/O

I/O Function After Reset

I/O State During

Reset

I/O State After Reset

Address/Data Bus (AD15:0)

Address/Data Bus

Pulled High

Driven Output

ALE

ADV

RD

ALE

RD

Pulled High

Pulled High

Driven Output

Driven Output

WR

WRL

WR

Pulled High

Driven Output

Port 0 (P0.0-P0.3; P0.6)

ECB(4:0)

[P0.0-P0.3; P0.6] and

ECB(4:0)

Undefined Inputs1

Undefined I/O1,2

Port 0 (P0.4 and P0.5)

P0.4 and P0.5

Undefined Inputs1

Undefined Inputs1

Port 0 (P0.7)

EXTINT

NMI

HSI.0

T2RST

HSI.1

T2CLK

HSI.2/HSO.4

HSI.3/HSO.5

HSO.0 through HSO.3

Port 1 (P1.0-P1.7)

PWM1; PWM2;

BREQ; HLDA; HOLD

Port 2 (P2.0)

TXD

Port 2 (P2.1)

RXD

Port 2 (P2.2)

EXTINT

Port 2 (P2.3)

T2CLK

IN

P0.7

NMI

HSI.0

Undefined Input1

T Pulled Down

EN Disabled Input1

Undefined Input1

Pulled Down

Disabled Input1

HSI.1

M Undefined

P Undefined

O HSO.0-HSO.3

L P1.0-P1.7

VE TXD

DERXD

Disabled Input1

Disabled I/O1

Disabled I/O1

Pulled Down

Pulled Up

Pulled Up

Undefined Input1

Disabled Input1

Disabled I/O1

Disabled I/O1

Driven Low

Outputs

Pulled Up

Driven High

Output

Undefined Input1

P2.2 and EXTINT

Undefined Input1

Undefined Input1

P2.3 and T2CLK

Undefined Input1

Undefined Input1

Port 2 (P2.4)

P2.4

T2RST

Undefined Input1

Undefined Input1

9

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