AS3517 datasheet(30/94 Pages) AMSCO

30 / 94 page

AS3517 V17

Data Sheet, Confidential

www.austriamicrosystems.com

9.1.7

2-Wire-Serial Control Interface

General

There is an I2C slave block implemented to have access to 64 byte of setting information.

The I2C address is: Adr_Group8 - audio processors

•

8Ch_write

•

8Dh_read

Protocol

Table 24 I2C Symbol Definitions

Symbol

Definition

R/W (AS3517 Slave)

Note

Start condition after stop

1 bit

Repeated start

1 bit

Device address for write

1000 1100b (8Ch)

Device address for read

1000 1101b 8Dh)

Word address

8 bit

Acknowledge

1 bit

No Acknowledge

1 bit

reg_data

8 bit

data (n)

8 bit

Stop condition

1 bit

WA++

Increment word address internally

During acknowledge

AS3517 (=slave) receives data

AS3517 (=slave) transmits data

Figure 12 Byte Write

Figure 13 Page Write

Byte Write and Page Write formats are used to write data to the slave.

The transmission begins with the START condition, which is generated by the master when the bus is in IDLE state (the bus is free). The

device-write address is followed by the word address. After the word address any number of data bytes can be sent to the slave. The

word address is incremented internally, in order to write subsequent data bytes on subsequent address locations.

For reading data from the slave device, the master has to change the transfer direction. This can be done either with a repeated START

condition followed by the device-read address, or simply with a new transmission START followed by the device-read address, when the

bus is in IDLE state. The device-read address is always followed by the 1st register byte transmitted from the slave. In Read Mode any

number of subsequent register bytes can be read from the slave. The word address is incremented internally.

Revision 1v3

- 93

AS3517 Datasheet(PDF) 30 Page - ams AG

AS3517 Datasheet(HTML) 30 Page - ams AG

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

Datasheet Download

Link URL