Quatech Asynchronous Communications Adapter for PCI bus DSCLP/SSCLP-100 Manual de usuario Pagina 18

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 48
  • Tabla de contenidos
  • SOLUCIÓN DE PROBLEMAS
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 17
4.4 Quatech Modem Control Register
The Quatech Modem Control Register can be used to set up each port. To
access the QMCR write a 0xBF to the LCR (base + 3) and a 0x10 to the Options
Register (base+7). This will allow the user read/write access to the QMCR. The
QMCR of the entire DSCLP-200/300 is shown in Figure 9a.
00 - TXEN “Auto”
01 - TXEN=DTR
10 - TXEN=RTS
11 - TXEN TOGGLES DURING X-MIT
1-0
0 - AUXOUT=RTS
1- AUXOUT=TCLK
2
0 - RCLK=TCLK,CTS=AUXIN
1 - RCLK=AUXIN, CTS=RTS
3
0 - Bits 2 and 3 are used
1 - RCLK=TCLK,CTS=RTS,
AUXOUT=AUXIN
4
0 - RXEN=1
1 - RXEN=!TXEN
5
0 (always 0)6
0 (always 0)7 (MSB)
DescriptionBit
Figure 9a --- Quatech Modem Control Register
DSCLP/SSCLP-200/300 User's Manual 18
Vista de pagina 17
1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 47 48

Comentarios a estos manuales

Sin comentarios