 |
Os motores de busca de Datasheet de Componentes eletrônicos |
|
|
Os motores de busca de Datasheet de Componentes eletrônicos |
|
ST5451 Folha de dados(PDF) 7 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
ST5451 Folha de dados(HTML) 7 Page - STMicroelectronics |
|
|
7 / 34 page  3 - REGISTER DESCRIPTION For all the register pictures MSB is on the left and LSB on the right If not otherwise stated bit are considered active at 1. FIFOS RFIFO (read), XFIFO (write). The address range of the two FIFOs are identical. All the 32 addresses give access to the ”current” FIFO location. When the closing Flag of a receive frame is de- tected, a status byte is available in the RFIFO. This byte has the following format: RBC RDO CRC RAB 0 0 0 0 RBC Receive Byte Count. The length of the received frame is n time 8 bits (n=3,4,5,...) RDO Receive Data Overflow A part of the frame has not been lost because the receive FIFO was full CRC CRC Check The received CRC bytes were not correct RAB Receive Abort The received frame was not aborted A status byte equal to D0H indicates a correctly received frame ISTA0 Interrupt Status Register 0 After RESET 10H RME RPF RFO XPR XDU EXI2 EXI1 0 RME Receive Message End One complete frame of length less than or equal to 32 bytes, or the last part of a frame of length greater than 32 bytes is stored in the RFIFO. RPF Receive Pool Full 32 bytes of a frame are in RFIFO. The frame is not yet completely received. RFO Receive Frame Overflow A complete frame was lost because no storage space was available in the RFIFO. XPR Transmit Pool Ready One data block (32 bytes max) may be entered into the XFIFO. XDU Transmit Data Underrun A transmitted frame was terminated with an abort sequence because no data were available for transmission in XFIFO and no XME command was is- sued. It is not possible to transmit frame when that interrupt remains un- acknowledged and XRES has not been set. EXI2 Extended Interrupt 2 The interrupt reason is indicated in reg- ister ISTA2 EXI1 Extented Interrupt1 The interrupt reason is indicated in reg- ister ISTA1. ISTA1 Interrupt Status Register 1 After RESET 01H (GCI mode only) 0 0 CIC1 EOM1 XAB1 RMR1 RAB1 XMR1 CIC1 Comman/Indicate Change A change in the value of CIR1 is de- tected EOM1 End of Message 1 (monitor channel) MON1 has received an end of mes- sage. XAB1 Monitor Transmit ABORT The received byte has not been de- tected in two successive frames. MON1 has sent an ABORT (A bit) to the remote transmitter. RMR1 Receive Monitor Register 1 ready A byte has been received in register MONR1. RAB1 Receive Abort MON1 received an ABORT from the re- mote receiver. XMR1 Transmit Monitor Register 1 ready A byte can be stored in register MONX1 ISTA2 Interrupt Status Register 2 After RESET 01H (GCI and TE mode only) 0 0 CIC2 EOM2 XAB2 RMR2 RAB2 XMR2 CIC2 Command/Indicate Change A change in the value of CIR2 is de- tected. ST5451 7/34 |
Nº de peça semelhante - ST5451 |
|
Descrição semelhante - ST5451 |
|
|
Ligação URL |
| Privacy Policy |
| ALLDATASHEETPT.COM |
| ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Portuguese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
