STV3550 datasheet(107/144 Pages) STMICROELECTRONICS

107 / 144 page

STV3550

107/144

7.7.16 I²C Operation

This section describes the hardware features which are implemented in order to allow full support

for the I²C bus standard.

The architecture of the I²C including all the I²C hardware additions is shown in Figure 69.

7.7.16.1 I²C Control

There are a number of features of the I²C-bus protocol which require special control:

1. To allow slow slave devices to be accessed, and to allow multiple master devices to generate a

consistent clock signal, a clock synchronization mechanism is specified.

2. START and STOP conditions must be recognized when in slave mode or multi-master mode. A

START condition initiates the address comparison phase. A STOP condition indicates that a

master has completed transmission and that the bus is now free.

Figure 69: SSC2 Architecture with I²C Hardware

Clock

Generator

Clock Stretcher

START/STOP

Detect

Shift Register

Arbitration

Checker

Acknowledge

Generator

Transmit Buffer

Receive Buffer

Peripheral Interface

serial_clock_in

serial_data_in

serial_data_out

serial_clock_out

START/STOP

Generator

I²C Control

Slave Address

Comparison

STV3550 数据表(PDF) 107 Page - STMicroelectronics

STV3550 数据表(HTML) 107 Page - STMicroelectronics

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

数据表下载

链接网址

STV3550 数据表(PDF) 107 Page - STMicroelectronics

STV3550 数据表(HTML) 107 Page - STMicroelectronics

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

数据表 下载

链接网址

数据表下载