ADE7166 datasheet(141/144 Pages) AD

141 / 144 page

ADE7566/ADE7569/ADE7166/ADE7169

Rev. A | Page 141 of 144

PORT 0

Port 0 is controlled directly through the bit-addressable Port 0

SFR (P0, 0x80). The weak internal pull-ups for Port 0 are

configured through the Port 0 Weak Pull-Up Enable SFR

(PINMAP0, 0xB2); they are enabled by default. The weak

internal pull-up is disabled by writing a 1 to PINMAP0.x.

Port 0 pins also have various secondary functions as described

in Table 156. The alternate functions of Port 0 pins can be

activated only if the corresponding bit latch in the Port 0 SFR

contains a 1. Otherwise, the port pin remains at 0.

PORT 1

Port 1 is an 8-bit bidirectional port controlled directly through

the bit-addressable Port 1 SFR (P1, 0x90). The weak internal

pull-ups for Port 1 are configured through the Port 1 Weak

Pull-Up Enable SFR (PINMAP1, 0xB3); they are enabled by

default. The weak internal pull-up is disabled by writing a 1 to

PINMAP1.x.

Port 1 pins also have various secondary functions as described

in Table 157. The alternate functions of Port 1 pins can be

activated only if the corresponding bit latch in the Port 1 SFR

contains a 1. Otherwise, the port pin remains at 0.

PORT 2

Port 2 is a 4-bit bidirectional port controlled directly through

the bit-addressable Port 2 SFR (P2, 0xA0). Note that P2.3 can be

used as an output only. Consequently, any read operation, such

as a CPL P2.3, cannot be executed on this I/O. The weak

internal pull-ups for Port 2 are configured through the Port 2

Weak Pull-Up Enable SFR (PINMAP2, 0xB4); they are enabled

by default. The weak internal pull-up is disabled by writing a 1

to PINMAP2.x.

Port 2 pins also have various secondary functions as described

in Table 158. The alternate functions of Port 2 pins can be

activated only if the corresponding bit latch in the Port 2 SFR

contains a 1. Otherwise, the port pin remains at 0.

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