TMC2084 Ver la hoja de datos (PDF) - SMSC -> Microchip

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TMC2084

Standalone Mode CircLink™ Controller

SMSC -> Microchip 

Standalone Mode CircLink TM Controller

Datasheet

PGS2 PGS1 PGS0

L

L

L

L

L

H

LHL

L HH

H

L

L

HLH

HH L

HHH

L : Low ; H : High

Push-pull only

PD7 - 4

PD3 - 0

Input

Input

O.D / Push-pull

PC7 - 0

PB7 - 0

Input

Output

PA7 - 0

Input Pins

for External

Trigger

nPISTR1

nPISTR2

Output

FLAG

OUTPUT

Output

Input

Input

Output

Input

Output

Output

Output

nPISTR1

-

nPISTR1

nPISTR2

Output

Input

Output

nPISTR1

-

O.D : Open-drain. The pins PA7 – 0 and PB7 – 0 are output-only.

Port D Considerations

Example 1: Configuring Port D as OUTPUT PORT or FLAG OUTPUT - The case where the configuration

by the shared pins is the same as the initial data from the OUTPUT PORT configured

The figure below shows the case where the initial data from the OUTPUT PORT does not conflict with the

configuration by shared pins even if port D is configured as the OUTPUT PORT or FLAG OUTPUT. Port D

remains in high-impedance state while the reset signal (nRESET) remains low. OUTPUT PORT remains in

high-impedance state during the period from the falling edge of reset to the beginning of the first output

data received. During these high-impedance periods, each input to port D is defined by the external pull-up

(High) or pull-down (Low) resister. When port D is configured as FLAG OUTPUT, it starts driving right after

the deassertion of the reset signal.

SMSC TMC2084

Page 17

DATASHEET

Revision 0.1 (03-31-06)

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