Zilog EZ80190 Uživatelský manuál stáhnout pdf (Strana 29)

eZ80190 Development Kit

User Manual

UM014108-0810 Operational Description

The GPIO Data Register receives inputs or provides outputs for each of

the seven general-purpose port lines, depending on the configuration of

the port. See Table 8.

Reading from the general-purpose port can damage the drivers

used for the general-purpose port and memory. The port can,

however, be used for writing data.

Anode Col 5 X

Anode Col 6 X

GPIO Output X

Table 8. General-Purpose Port Data Register

Function

Bit #

76543210

GPIO D0 X

GPIO D1 X

GPIO D2 X

GPIO D3 X

GPIO D4 X

GPIO D5 X

GPIO D6 X

GPIO D7 X

Table 7. LED Anode/General-Purpose Port Output Control Register (Continued)

Function

Bit #

76543210

Caution:

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 86 87

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Zilog EZ80190 Uživatelský manuál Strana 29