ADP5587ACBZ-R7 datasheet(14/24 Pages) AD

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ADP5587

Data Sheet

Rev. E | Page 14 of 24

I2C PROGRAMMING AND DIGITAL CONTROL

The ADP5587 provides full I2C software programmability to

facilitate its adoption in various product architectures. All

package has two options for I2C addressing.

The default part option I2C write address is located at 0x68

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

The ADP5587ACPZ-1-R7 has the I2C write address at 0x60 (0b

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

All communication to the ADP5587 is performed via its I2C-

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

following the readback data byte, and a stop condition

completes the cycle.

SUBADDRESS

CHIP ADDRESS 1

ST 0 1 1 0 1 0 0

0 SP

0 = WRITE

ADP5587 RECEIVES D ATA

1DEFAULT WRITE ADDRESS IS 0x68. OPTION 1 WRITE ADDRESS IS 0x60.

Figure 16. I2C Write Sequence

SUBADDRESS

CHIP ADDRESS1

CHIP ADDRESS2

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

1 SP

1 = READ

ADP5587 SENDS DATA

0 = WRITE

1DEFAULT WRITE ADDRESS IS 0x68. OPTION 1 WRITE ADDRESS IS 0x60.

2DEFAULT READ ADDRESS IS 0x69. OPTION 1 READ ADDRESS IS 0x61.

Figure 17. I2C Read and Write Sequences

READ START ADDR

CHIP ADDRESS

CHIP ADDRESS1

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

1 = READ

ADP5587 SENDS DATA 1

0 = WRITE

ADP5587 SENDS DATA N

...

1DEFAULT READ ADDRESS IS 0x69. OPTION 1 READ ADDRESS IS 0x61.

Figure 18. I2C Read Auto-Increment

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