ADP5586ACBZ-00-R7 datasheet(18/44 Pages) AD

18 / 44 page

ADP5586

Data Sheet

Rev. 0 | Page 18 of 44

Figure 27 shows a typical multibyte read sequence for reading

internal registers. The cycle begins with a start condition followed

by the 7-bit device address (0x34), followed by the R/W bit set

to 0 for a write cycle. The ADP5586 acknowledges the address

byte by pulling the data line low. The address of the register

from which data is to be read is sent next. The ADP5586 acknowl-

edges the register pointer byte by pulling the data line low. A start

condition is repeated, followed by the 7-bit device address (0x34),

followed by the R/W bit set to 1 for a read cycle. The ADP5586

acknowledges the address byte by pulling the data line low.

Next, the 8-bit data is then read. The address pointer is then

incremented to read the next data byte, and the host continues to

pull the data line low for each byte (master acknowledge) until

the n data byte is read. The host pulls the data line high (no

acknowledge) after the last byte is read, and a stop condition

completes the sequence.

START

0 = WRITE

7-BIT DEVICE ADDRESS

ADP5586 ACK

8-BIT REGISTER POINTER

READ BYTE 1

READ BYTE 2

READ BYTE n

REPEAT START

1 = READ

ADP5586 ACK

MASTER ACK

NO ACK

STOP

Figure 27. I2C Multibyte Read Sequence

ADP5586ACBZ-00-R7 数据表(PDF) 18 Page - Analog Devices