SI2415-D-FS Silicon Laboratories Inc, SI2415-D-FS Datasheet - Page 293
SI2415-D-FS
Manufacturer Part Number
SI2415-D-FS
Description
IC ISOMODEM SYSTEM-SIDE 16SOIC
Manufacturer
Silicon Laboratories Inc
Specifications of SI2415-D-FS
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
- Current page: 293 of 304
- Download datasheet (5Mb)
Polling HIR1 Method
Transmitting and receiving data to and from the modem is accomplished by polling HIR1 status bits TXE and REM.
Polling is implemented by the following code fragment, excerpted from modemCommunicationUpdate() , which
must run in an infinite loop:
static char bytesToSend == 12;
if ( ( readModem( HIR1 ) & SiREM ) == 0
{
}
if ( gUARTToModemBufferSize > 0 )
{
}
Interrupt Service Routine (ISR) Method
Transmitting and receiving data to and from the modem is accomplished by servicing the interrupts generated by
the modem. The interrupt sources are described below. Whenever new communication is initiated after a period of
idling with respect to the TXE interrupt, the interrupt must be "jump-started" by calling the interrupt service routine
manually.
RXF Interrupt: Receive FIFO Almost Full
The RXF bit indicates the status of the receive FIFO. If this bit is set, the FIFO is either full (contains 12 bytes) or
almost full (contains 10 or 11 bytes). There are two ways to clear this interrupt: the RXF bit in HIR1 can be cleared
by the host, or enough bytes can be read from the receive FIFO to leave 9 bytes or less, thus removing the
condition for the interrupt. If the host clears the RXF bit, the interrupt is disabled. The interrupt can be rearmed only
when the receive FIFO drops below the ten-byte threshold. The interrupt can then trigger again when the receive
FIFO fills up to ten bytes or more.
readModemByte;
if ( bytesToSend == 12 )
{
}
else
{
}
status = readModem( HIR1 ) & SiTXE;
if ( status )
{
}
writeModem( HIR0, pullByteForModem(), 0xFF );
bytesToSend--;
// If the bytes to send count = 0, reset the count
if ( bytesToSend == 0 )
{
}
writeModem( HIR0, pullByteForModem(), 0xFF );
bytesToSend--;
// No need to check TXE because transmit FIFO is twelve deep
bytesToSend = 12;
// Declared in modemCommunicationUpdate()
// If there are data to be sent
// Check TXE only every twelve bytes sent
// If transmit FIFO empty
Rev. 1.3
&& rxBufferSize < MODULUS_MASK )
AN93
293
Related parts for SI2415-D-FS
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
SOIC 16/C°/14.4 KBPS ISOMODEM 16-PIN SYSTEM-SIDE - LEAD-FREE
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
TSSOP 24/I°/14.4 KBPS ISOMODEM SYSTEM-SIDE
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
IC ISOMODEM W/DAA 16SOIC
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
IC ISOMODEM W/DAA 24TSSOP
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
Telecom Line Management ICs
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
Modem Chip Chipset 56Kbps 24-Pin TSSOP
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
IC ISOMODEM SYSTEM-SIDE 24TSSOP
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
SMD/C°/SINGLE-ENDED OUTPUT SILICON OSCILLATOR
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A N/A/SI4010 AES KEYFOB DEMO WITH LCD RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A N/A/SI4010 SIMPLIFIED KEY FOB DEMO WITH LED RX
Manufacturer:
Silicon Laboratories Inc
Datasheet: