Maxim-integrated MAXQ622 Manual do Utilizador descarregar pdf (Página 110)

MAXQ612/MAXQ622 User’s Guide

6-8 Maxim Integrated

Bits 7:0: Input/Output Direction for Port 1. The bits in this register control the input/output direction for port pins P1.0

to P1.7. When PD1.n is set to 0, the corresponding port pin (P1.n) acts as an input with characteristics determined by

PO1.n. When PD1.n is set to 1, the port pin acts as an output, driving the output state given by PO1.n.

Bits 7:0: Input/Output Direction for Port 2. The bits in this register control the input/output direction for port pins P2.0

to P2.7. When PD2.n is set to 0, the corresponding port pin (P2.n) acts as an input with characteristics determined by

PO2.n. When PD2.n is set to 1, the port pin acts as an output, driving the output state given by PO2.n.

Bits 7:0: Input/Output Direction for Port 3. The bits in this register control the input/output direction for port pins P3.0

to P3.7. When PD3.n is set to 0, the corresponding port pin (P3.n) acts as an input with characteristics determined by

PO3.n. When PD3.n is set to 1, the port pin acts as an output, driving the output state given by PO3.n.

Bits 5:0: Input/Output Direction for Port 4. The bits in this register control the input/output direction for port pins P4.0

to P4.5. When PD4.n is set to 0, the corresponding port pin (P4.n) acts as an input with characteristics determined by

PO4.n. When PD4.n is set to 1, the port pin acts as an output, driving the output state given by PO4.n.

PD1

Port 1 Direction Register

M0[11h]

PD2

Port 2 Direction Register

M0[12h]

PD3

Port 3 Direction Register

M0[13h]

Bit # 7 6 5 4 3 2 1 0

Name PD1.7 PD1.6 PD1.5 PD1.4 PD1.3 PD1.2 PD1.1 PD1.0

Reset s s s s s s s s

Access rw rw rw rw rw rw rw rw

Bit # 7 6 5 4 3 2 1 0

Name PD2.7 PD2.6 PD2.5 PD2.4 PD2.3 PD2.2 PD2.1 PD2.0

Reset s s s s s s s s

Access rw rw rw rw rw rw rw rw

Bit # 7 6 5 4 3 2 1 0

Name PD3.7 PD3.6 PD3.5 PD3.4 PD3.3 PD3.2 PD3.1 PD3.0

Reset s s s s s s s s

Access rw rw rw rw rw rw rw rw

PD4

Port 4 Direction Register

M1[10h]

Bit # 7 6 5 4 3 2 1 0

Name PD4.7 PD4.6 PD4.5 PD4.4 PD4.3 PD4.2 PD4.1 PD4.0

Reset s s s s s s s s

Access rw rw rw rw rw rw rw rw

1 2 ... 105 106 107 108 109 110 111 112 113 114 115 ... 254 255

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Maxim-integrated MAXQ622 Manual do Utilizador Página 110