|
|
PDF W83977A Data sheet ( Hoja de datos )
| Número de pieza | W83977A | |
| Descripción | WINBOND I/O | |
| Fabricantes | Winbond | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de W83977A (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
W83977ATF
WINBOND I/O
1 page  
OnNow Funtions
• Keyboard wake-up by programmable keys (patent pending)
• Mouse wake-up by programmable buttons (patent pending)
• CIR wake-up by programmable keys (patent pending)
Package
• 128-pin PQFP
W83977ATF
PRELIMINARY
Publication Release Date: April 1998
-4- Revision 0.52
5 Page 
1.3 Serial Port Interface
SYMBOL
CTSA
CTSB
PIN
41
48
I/O
INt
DSRA
DSRB
RTSA
42 INt
49
43 I/O8t
HEFRAS
RTSB
50 I/O8t
DTRA
44 I/O8t
PNPCSV
DTRB
51 I/O8t
SINA
SINB
SOUTA
45, 52
46
INt
I/O8t
PENKBC
SOUTB
PEN48
DCDA
DCDB
RIA
RIB
53 I/O8t
47 INt
54
65 INt
66
W83977ATF
PRELIMINARY
FUNCTION
Clear To Send. This is the modem control input.
The function of these pins can be tested by reading bit 4 of the
handshake status register.
Data Set Ready. An active low signal indicates the modem or
data set is ready to establish a communication link and transfer
data to the UART.
UART A Request To Send. An active low signal informs the
modem or data set that the controller is ready to send data.
During power-on reset, this pin is pulled down internally and is
defined as HEFRAS, which provides the power-on value for
CR26 bit 6 (HEFRAS). A 4.7 kΩ is recommended if intends to
pull up. (select 370H as configuration I/O port′s address)
UART B Request To Send. An active low signal informs the
modem or data set that the controller is ready to send data.
UART A Data Terminal Ready. An active low signal informs the
modem or data set that the controller is ready to communicate.
During power-on reset, this pin is pulled down internally and is
defined as PNPCSV , which provides the power-on value for
CR24 bit 0 (PNPCSV ). A 4.7 kΩ is recommended if intends to
pull up. (clear the default value of FDC, UARTs, and PRT)
UART B Data Terminal Ready. An active low signal informs the
modem or data set that controller is ready to communicate.
Serial Input. It is used to receive serial data through the
communication link.
UART A Serial Output. It is used to transmit serial data out to the
communication link.
During power-on reset, this pin is pulled down internally and is
defined as PENKBC, which provides the power-on value for
CR24 bit 2 (ENKBC). A 4.7 kΩ resistor is recommended if
intends to pull up. (enable KBC)
UART B Serial Output. During power-on reset, this pin is pulled
down internally and is defined as PEN48, which provides the
power-on value for CR24 bit 6 (EN48). A 4.7 kΩ resistor is
recommended if intends to pull up.
Data Carrier Detect. An active low signal indicates the modem
or data set has detected a data carrier.
Ring Indicator. An active low signal indicates that a ring signal is
being received from the modem or data set.
Publication Release Date: April 1998
-10- Revision 0.52
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet W83977A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| W83977A | WINBOND I/O | Winbond |
| W83977AF | PLUG & PLAY 1.0A COMPLIANT | Winbond |
| W83977AF-A | WINBOND I/O | Winbond |
| W83977AG-A | WINBOND I/O | Winbond |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |