Advantech PCL-818 Series Manual de usuario Pagina 69

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 74
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 68
61 Appendix C
C.18 FIFO Status — BASE+19H
The register at BASE+19H clears the FIFO buffer and sets its empty flag
(EF). The FIFO status register, address BASE+19H, has flags which you
can read to determine the current state of the FIFO buffer, including full
flag, half-full flag, and empty flag.
Table C-17 Register for FIFO Status
EF FIFO empty flag
1 FIFO is empty
0 FIFO is not empty
HF FIFO half-full flag
1 FIFO is half-full or more than half-full
0 FIFO is less than half-full
FF FIFO full flag
1 FIFO is full
0 FIFO is not full
Read FIFO status
Bit # 7 6 5 4 3 2 1 0
BASE + 19H FF HF EF
Note: This register is not used for PCL-818L.
Vista de pagina 68
1 2 ... 64 65 66 67 68 69 70 71 72 73 74

Comentarios a estos manuales

Sin comentarios