TPS65982ABZBHR datasheet(79/121 Pages) TI1

79 / 121 page

Slave Address

Data Byte

Start Condition

Repeated Start Condition

Read (bit value of 1)

Write (bit value of 0)

Field is required to have the value x

Acknowledge (this bit position may be 0 for an ACK or

1 for a NACK)

Stop Condition

Master-to-Slave

Slave-to-Master

Continuation of protocol

Unique Address

Byte Count = N

Unique Address

Data Byte N

Data Byte 1

Data Byte 2

Unique Address

Byte Count = N

Data Byte 1

Data Byte 2

Data Byte N

TPS65982

www.ti.com

SLVSD02D – MARCH 2015 – REVISED JUNE 2019

Product Folder Links: TPS65982

Submit Documentation Feedback

9.5.2.4 Unique Address Interface

The Unique Address Interface allows for complex interaction between an I2C master and a single TPS65982.

The I2C Slave sub-address is used to receive or respond to Host Interface protocol commands. Figure 73 and

Figure 74 show the write and read protocol for the I2C slave interface, and a key is included in Figure 75 to

explain the terminology used. The key to the protocol diagrams is in the SMBus Specification and is repeated

here in part.

Figure 73. I2C Unique Address Write Register Protocol

Figure 74. I2C Unique Address Read Register Protocol

Figure 75. I2C Read/Write Protocol Key

9.5.2.5 I2C Pin Address Setting

To enable the setting of multiple I2C addresses using a single TPS65982 pin, a resistance is placed externally on

the I2C_ADDR pin. The internal ADC then decodes the address from this resistance value. Figure 76 shows the

decoding. DEBUG_CTL1/2 are checked at the same time for the DC condition on this pin (high or low) for setting

other bits of the address described previously. Note, DEBUG_CTL1/2 are GPIO and the address decoding is

done by firmware in the digital core.

TPS65982ABZBHR датащи(PDF) 79 Page - Texas Instruments

TPS65982ABZBHR датащи(HTML) 79 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL