SCD128410QCE Intel, SCD128410QCE Datasheet - Page 94
SCD128410QCE
Manufacturer Part Number
SCD128410QCE
Description
Manufacturer
Intel
Datasheet
1.SCD128410QCE.pdf
(176 pages)
Specifications of SCD128410QCE
Pin Count
100
Lead Free Status / RoHS Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SCD128410QCE
Manufacturer:
INTEL
Quantity:
20 000
- Current page: 94 of 176
- Download datasheet (3Mb)
CD1284 — IEEE 1284-Compatible Parallel Interface Controller
6.3
6.3.1
6.3.1.1
94
fifo thresh = 8 */
commands */
commands */
CCR */
}
Serial Poll Mode Examples
The CD1284 provides a set of seven registers dedicated to Poll-mode operation, described in
Chapter
service requests from any of the channels receiver, transmitter, or modem signal change functions.
The primary registers involved in polling are: SVRR, RIR, TIR, MIR, and CAR. The
supplementary registers are: RIVR, TIVR, and MIVR. Of the latter three registers, only RIVR is
actually used. RIVR provides the service request status for ‘good’ data or exception data. The
TIVR and MIVR provide redundant information and are rarely used. Other registers related to
service requests (TDR, RDSR, MISR, and so on) perform the same functions as in hardware-
acknowledged service requests. The parallel channel uses a slightly different register manipulation
procedure and is shown separately. The top-level polling routine is the same regardless of the type
of request serviced.
Once again, C code fragments describe the functions. As with other coding examples, it is assumed
that register addresses are defined elsewhere, such as in a header file. The routines cannot be
considered complete. The routines cannot be considered complete; some pieces are dependent on
the system software design and the code presented is only an example. The pieces do, however,
show methods used to implement the poll mode service request/service acknowledge sequence.
Polling Routine Examples
Scanning Loop
/* Poll-mode code fragments routinely check for any servicing requests and branches
to the appropriate service routine. The code prioritizes service requests as receive,
transmit, modem and parallel, in that order. System design dictates the actual
priorities required. Note that the routine ignores the state of the DMA active bit.
*/
poll( )
{
5.0. This section shows one of many ways that these registers are used to detect and
outportb(CAR, chan);
outportb(RTPR, 0x14); /* set channel time-out value (20ms) */
outportb(TCOR, 0x01); /* constants for 25 MHz clock – clock option*/
outportb(TBPR, 0x51); /*
outportb(RCOR, 0x01); /* constants for 25 MHz clock – clock option*/
outportb(RBPR, 0x51); /*
outportb(COR1, 0x03); /* no parity, 1 stop bit, 8 bit chars */
outportb(COR2, 0x40); /* auto. in-band flow control */
outportb(COR3, 0x38); /* transp. flow-control, special char 1 & 2 detect,
while (inportb(CCR) != 0)/* make sure that CCR is zero before issuing
outportb(CCR, 0x4E);
outportb(COR5, 0x80); /* enable ISTRIP */
outportb(SRER, 0x14); /* enable receive and transmit interrupts */
while (inportb(CCR) != 0)/* make sure that CCR is zero before issuing
outportb(CCR, 0x1A);
char
char
if (status = inportb(SVRR) & 0x0F) {/* Mask off DMA status */
;
;
status;
rx_stat = tx_stat = md_stat = 0, par_stat = 0;
/* set channel number in CAR */
/* issue COR changed command for COR1, 2, 3 */
/* issue receiver and transmitter enable command to
– baud rate period */
– baud rate period */
Datasheet
Related parts for SCD128410QCE
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports
Manufacturer:
INTEL [Intel Corporation]
Datasheet:
Part Number:
Description:
(SCD12 - SCD16) SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Manufacturer:
Zowie Technology Corporation
Datasheet:
Part Number:
Description:
Microprocessor: Intel Celeron M Processor 320 and Ultra Low Voltage Intel Celeron M Processor at 600MHz
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 82550 Fast Ethernet Multifunction PCI/CardBus Controller
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 64 Mbit. Access speed 150 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 100 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
DA28F640J5A-1505 Volt Intel StrataFlash Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 6300ESB I/O Controller Hub
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel 82801DB I/O Controller Hub (ICH4), Pb-Free SLI
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel 82801FB I/O Controller Hub (ICH6)
Manufacturer:
Intel Corporation
Datasheet: