Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Instrukcja Użytkownika Pobierz pdf (Strona 37)

The following peripheral registers control the general-purpose I/O and external interrupt features specific to the MAXQ2000.

Bits 0 to 7: (PO0.0 to PO0.7) Port 0 Output. This register stores the data that will be output on any of the pins of Port 0 that have been

defined as output pins. If the port pins are in input mode, this register controls the weak pullup for each pin. Changing the data direc-

tion of any pins for this port (through register PD0) will not affect the value in this register.

Bits 0 to 7: (PO1.0 to PO1.7) Port 1 Output. This register stores the data that will be output on any of the pins of Port 1 that have been

defined as output pins. If the port pins are in input mode, this register controls the weak pullup for each pin. Changing the data direc-

tion of any pins for this port (through register PD1) will not affect the value in this register.

Bits 0 to 7: (PO2.0 to PO2.7) Port 2 Output. This register stores the data that will be output on any of the pins of Port 2 that have been

defined as output pins. If the port pins are in input mode, this register controls the weak pullup for each pin. Changing the data direc-

tion of any pins for this port (through register PD2) will not affect the value in this register.

MAXQ Family User’s Guide:

MAXQ2000 Supplement

Bit # 76543210

Name PO0.7 PO0.6 PO0.5 PO0.4 PO0.3 PO0.2 PO0.1 PO0.0

Reset 11111111

Access r/w r/w r/w r/w r/w r/w r/w r/w

Bit # 76543210

Name PO1.7 PO1.6 PO1.5 PO1.4 PO1.3 PO1.2 PO1.1 PO1.0

Reset 1 1 1 11111

Access r/w r/w r/w r/w r/w r/w r/w r/w

Bit # 76543210

Name PO2.7 PO2.6 PO2.5 PO2.4 PO2.3 PO2.2 PO2.1 PO2.0

Reset 11111111

Access r/w r/w r/w r/w r/w r/w r/w r/w

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Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Instrukcja Użytkownika Strona 37