Silicon Laboratories C8051F340 Instrukcja Użytkownika Pobierz pdf (Strona 161)

Rev. 0.5 161

C8051F340/1/2/3/4/5/6/7

SFR Definition 15.21. P4MDIN: Port4 Input Mode

SFR Definition 15.22. P4MDOUT: Port4 Output Mode

Bits7–0: Analog Input Configuration Bits for P4.7–P4.0 (respectively).

Port pins configured as analog inputs have their weak pull-up, digital driver, and digital

receiver disabled.

0: Corresponding P4.n pin is configured as an analog input.

1: Corresponding P4.n pin is not configured as an analog input.

Note: P4 is only available on 48-pin devices.

R/W R/W R/W R/W R/W R/W R/W R/W Reset Value

11111111

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 SFR Address:

0xF5

Bits7–0: Output Configuration Bits for P4.7–P4.0 (respectively); ignored if corresponding bit in regis-

ter P4MDIN is logic 0.

0: Corresponding P4.n Output is open-drain.

1: Corresponding P4.n Output is push-pull.

Note: P4 is only available on 48-pin devices.

R/W R/W R/W R/W R/W R/W R/W R/W Reset Value

00000000

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 SFR Address:

0xAE

1 2 ... 156 157 158 159 160 161 162 163 164 165 166 ... 281 282

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Silicon Laboratories C8051F340 Instrukcja Użytkownika Strona 161