ADE5166 datasheet(133/148 Pages) AD

133 / 148 page

Preliminary Technical Data

ADE5166/ADE5169/ADE5566/ADE5569

Rev. PrB | Page 133 of 148

Table 147. SPI Configuration SFR 1 (SPIMOD1, 0xE8)

Bit

Address

Mnemonic

Default

Description

7 to 6

0xEF to 0xEE

Reserved

Reserved.

0xED

INTMOD

SPI interrupt mode.

INTMOD

Result

SPI interrupt is set when SPI Rx buffer is full.

SPI interrupt is set when SPI Tx buffer is empty.

0xEC

AUTO_SS

Master mode, SS output control (see Figure 89).

AUTO_SS

Result

The SS pin is held low while this bit is cleared. This allows manual chip

select control using the SS pin.

Single Byte Read or Write. The SS pin goes low during a single byte

transmission and then returns high.

Continuous Transfer. The SS pin goes low during the duration of the

multibyte continuous transfer and then returns high.

0xEB

SS_EN

Slave mode, SS input enable.

When this bit is set to Logic 1, the SS pin is defined as the slave select input pin for the

SPI slave interface.

0xEA

RxOFW

Receive buffer overflow write enable.

RxOFW

Result

If the SPI2CRx SFR has not been read when a new data byte is received,

the new byte is discarded.

If the SPI2CRx SFR has not been read when a new data byte is received,

the new byte overwrites the old data.

1 to 0

0xE9 to 0xE8

SPIR[1:0]

Master mode, SPI SCLK frequency.

SPIR[1:0]

Result

fCORE/8 = 512 kHz (if fCORE = 4.096 MHz).

fCORE/16 = 256 kHz (if fCORE = 4.096 MHz).

fCORE/32 = 128 kHz (if fCORE = 4.096 MHz).

fCORE/64 = 64 kHz (if fCORE = 4.096 MHz).

ADE5166 데이터시트(PDF) 133 Page - Analog Devices

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