Zilog eZ80F92 Uživatelský manuál stáhnout pdf (Strana 30)

eZ80F92 Development Kit

User Manual

eZ80Acclaim!

Development Platform UM013911-0607

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

the seven GPIO Port A lines, depending on the configuration of the port.

See Table 8.

LED Matrix

The one 7 x 5 LED matrix device on the eZ80Acclaim!

Development

Platform is a memory-mapped device that can be used to display informa-

tion, such as programmed alphanumeric characters. For example, the

Anode Col 4 X

Anode Col 5 X

Anode Col 6 X

GPIO Output X

Table 8. GPIO 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/GPIO Port A Output Control Register (Continued)

Function

Bit #

76543210

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 86 87

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