STM8L151X8 datasheet(23/146 Pages) STMICROELECTRONICS

23 / 146 page

DocID17943 Rev 10

23/146

STM8L151x6/8 STM8L152x6/8

Functional overview

It is clocked by the internal LSI RC clock source, and thus stays active even in case of a

CPU clock failure.

3.16

Beeper

The beeper function outputs a signal on the BEEP pin for sound generation. The signal is in

the range of 1, 2 or 4 kHz.

3.17

Communication interfaces

3.17.1

SPI

The serial peripheral interfaces (SPI1 and SPI2) provide half/ full duplex synchronous serial

communication with external devices.

•

Maximum speed: 8 Mbit/s (fSYSCLK/2) both for master and slave

•

Full duplex synchronous transfers

•

Simplex synchronous transfers on 2 lines with a possible bidirectional data line

•

Master or slave operation - selectable by hardware or software

•

Hardware CRC calculation

•

Slave/master selection input pin

Note:

SPI1 and SPI2 can be served by the DMA1 Controller.

3.17.2

I2C

The I2C bus interface (I2C1) provides multi-master capability, and controls all I²C bus-

specific sequencing, protocol, arbitration and timing.

•

Master, slave and multi-master capability

•

Standard mode up to 100 kHz and fast speed modes up to 400 kHz.

•

7-bit and 10-bit addressing modes.

•

SMBus 2.0 and PMBus support

•

Hardware CRC calculation

Note:

I2C1 can be served by the DMA1 Controller.

STM8L151x8 Fiches technique(PDF) 23 Page - STMicroelectronics

STM8L151x8 Fiches technique(HTML) 23 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

Fiches technique Télécharger

Lien URL