ADP5587

Data Sheet

Rev. E | Page 14 of 24

facilitate its adoption in various product architectures. All

(0b01101000), and the read address is at 0x69 (0b 01101001).

01100000) and the read address at 0x61 (0b 01100001).

compatible serial interface. Figure 16 shows a typical write

sequence for programming an internal register. The cycle

begins with a start condition followed by the chip write address.

The ADP5587 acknowledges the chip write address byte by

pulling the data line low. The address of the register to which

data is to be written is sent next. The ADP5587 acknowledges

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

byte to be written is sent next. The ADP5587 acknowledges the

data byte by pulling the data line low, and a stop condition

completes the sequence.

Figure 17 shows a typical read sequence for reading back an

internal register. The cycle begins with a start condition

followed by the chip write address. The ADP5587 acknowledges

the chip write address byte by pulling the data line low. The

address of the register from which data is to be read is sent next.

The ADP5587 acknowledges the register address byte by pulling

the data line low. The cycle continues with a repeat start

followed by the chip read address. The ADP5587 acknowledges

the chip read address byte by pulling the data line low. The

ADP5587 places the contents of the previously addressed

register on the bus for readback. There is no acknowledge

following the readback data byte, and a stop condition

completes the cycle.

SUBADDRESS

ST 0 1 1 0 1 0 0

0

0

0 SP

0 = WRITE

ADP5587 RECEIVES D ATA

0

SUBADDRESS

ST 0 1 1 0 1 0 0

0 0 0 0 0 0 0 1 1 0 ST 0 1 1 0 1 0 0

0

1 SP

1 = READ

ADP5587 SENDS DATA

0 = WRITE

0

1

READ START ADDR

CHIP ADDRESS

ST 0 1 1 0 1 0 0

0 0 0 0 0 0 0 1 1 0 ST 0 1 1 0 1 0 0

0

0

1 = READ

ADP5587 SENDS DATA 1

0 = WRITE

0

1

1

ADP5587 SENDS DATA N

...

ST