ADE7166 datasheet(140/144 Pages) AD

140 / 144 page

ADE7566/ADE7569/ADE7166/ADE7169

Rev. A | Page 140 of 144

Table 156. Port 0 Alternate Functions

Pin No.

Alternate Function

Alternate Function Enable

BCTRL External Battery Control Input

Set INT1PROG[2:0] = X01 in the Interrupt Pins Configuration SFR (INTPR,

0xFF).

INT1 External Interrupt

Set EX1 in the Interrupt Enable SFR (IE, 0xA8).

P0.0

INT1 Wake-up from PSM2 Operating Mode

Set INT1PROG[2:0] = 11X in the Interrupt Pins Configuration SFR (INTPR,

0xFF).

P0.1

FP19 LCD Segment Pin

Set FP19EN in the LCD Segment Enable 2 SFR (LCDSEGE2, 0xED).

P0.2

CF1 ADE Calibration Frequency Output

Clear the DISCF1 bit in the ADE energy measurement internal MODE1 register

(0x0B).

P0.3

CF2 ADE Calibration Frequency Output

Clear the DISCF2 bit in the ADE energy measurement internal MODE1 register

(0x0B).

MOSI SPI Data Line

Set the SCPS bit in the Configuration SFR (CFG, 0xAF) and set the SPIEN bit in

the SPI Configuration SFR 2 (SPIMOD2, 0xE9).

P0.4

SDATA I2C Data Line

Clear the SCPS bit in the Configuration SFR (CFG, 0xAF) and set the I2CEN bit

in the I2C Mode SFR (I2CMOD, 0xE8).

P0.5

MISO SPI Data Line

Set the SCPS bit in the Configuration SFR (CFG, 0xAF) and set the SPIEN bit in

the SPI Configuration SFR 2 (SPIMOD2, 0xE9).

P0.6

SCLK Serial Clock for I2C or SPI

Set the I2CEN bit in the I2C Mode SFR (I2CMOD, 0xE8) or the SPIEN bit in the

SPI Configuration SFR 2 (SPIMOD2, 0xE9) to enable the I2C or SPI interface.

T0 Timer0 Input

Set the C/T0 bit in the Timer/Counter 0 and Timer/Counter 1 Mode SFR (TMOD,

0x89) to enable T0 as an external event counter.

SS SPI Slave Select Input for SPI in Slave Mode

Set the SS_EN bit in the SPI Configuration SFR 1 (SPIMOD1, 0xE8).

SS SPI Slave Select Output for SPI in Master Mode

Set the SPIMS_b bit in the SPI Configuration SFR 2 (SPIMOD2, 0xE9).

P0.7

T1 Timer 1 Input

Set the C/T1 bit in the Timer/Counter 0 and Timer/Counter 1 Mode SFR (TMOD,

0x89) to enable T1 as an external event counter.

Table 157. Port 1 Alternate Functions

Pin No.

Alternate Function

Alternate Function Enable

RxD Receiver Data Input for UART

Set the REN bit in the Serial Communications Control Register Bit Description

SFR (SCON, 0x98).

P1.0

Rx Edge Wake-up from PSM2 Operating Mode

Set RXPROG[1:0] = 11 in the Peripheral Configuration SFR (PERIPH, 0xF4).

P1.1

TxD Transmitter Data Output for UART

This pin becomes TxD as soon as data is written into SBUF.

P1.2

FP25 LCD Segment Pin

Set FP25EN in the LCD Segment Enable SFR (LCDSEGE, 0x97).

FP24 LCD Segment Pin

Set FP24EN in the LCD Segment Enable SFR (LCDSEGE, 0x97).

P1.3

T2EX Timer 2 Control Input

Set EXEN2 in the Timer/Counter 2 Control SFR (T2CON, 0xC8).

FP23 LCD Segment Pin

Set FP23EN in the LCD Segment Enable SFR (LCDSEGE, 0x97).

P1.4

T2 Timer 2 Input

Set the C/T2 bit in the Timer/Counter 2 Control SFR (T2CON, 0xC8) to enable T2

as an external event counter.

P1.5

FP22 LCD Segment Pin

Set FP22EN in the LCD Segment Enable SFR (LCDSEGE, 0x97).

P1.6

FP21 LCD Segment Pin

Set FP21EN in the LCD Segment Enable SFR (LCDSEGE, 0x97).

P1.7

FP20 LCD Segment Pin

Set FP20EN in the LCD Segment Enable SFR (LCDSEGE, 0x97).

Table 158. Port 2 Alternate Functions

Pin No.

Alternate Function

Alternate Function Enable

P2.0

FP18 LCD Segment Pin

Set FP18EN in the LCD Segment Enable 2 SFR (LCDSEGE2, 0xED).

P2.1

FP17 LCD Segment Pin

Set FP17EN in the LCD Segment Enable 2 SFR (LCDSEGE2, 0xED).

P2.2

FP16 LCD Segment Pin

Set FP16EN in the LCD Segment Enable 2 SFR (LCDSEGE2, 0xED).

P2.3

SDEN serial download pin sampled on reset. P2.3 is an output only.

Enabled by default.

ADE7166 데이터시트(PDF) 140 Page - Analog Devices

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