Cypress Semiconductor FX2LP Informazioni Techniche Pagina 362

  • Scaricare
  • Aggiungi ai miei manuali
  • Stampa
  • Pagina
    / 460
  • Indice
  • SEGNALIBRI
  • Valutato. / 5. Basato su recensioni clienti
Vedere la pagina 361
EZ-USB FX2 Technical Reference Manual
Page 15-42 EZ-USB FX2 Technical Reference Manual v2.1
Bit 7 SKIP Skip Packet
When ENH_PKT (REVCTL.0) is set to 1, setting this bit to a 1 will skip the IN packet. Clear-
ing this bit to 0 automatically dispatches an IN buffer.
Bit 3-0 EP3:0 Endpoint Number
Duplicates the function of the PKTEND pin. This feature is used only for IN transfers.
By writing the desired endpoint number (2, 4, 6 or 8), FX2 logic automatically dispatches an
IN buffer, for example, it commits the packet to the USB logic, and writes the accumulated
byte count to the endpoints byte count register, thus arming the IN transfer.
15.6.8 Force OUT Packet End
Figure 15-36. Force OUT Packet End
Bit 7 SKIP Skip Packet
When ENH_PKT (REVCTL.0) is set to 1, setting this bit to a 1 will skip the OUT packet.
Clearing this bit to 0 automatically dispatches an OUT buffer.
Bits 3:0 EP3:0 Endpoint Number
Replaces the function of EPxBCL.7=1 (Skip). This feature is for OUT transfers. By writing the
desired endpoint number (2, 4, 6, or 8), FX2 logic automatically skips or commits an OUT
packet (depends on the SKIP bit settings).
Note: This register has no effect if REVCTL.0=0.
OUTPKTEND
see Section 15.5.9
see Section 15.14
Force OUT Packet End E649
b7 b6 b5 b4 b3 b2 b1 b0
SKIP 0 0 0 EP3 EP2 EP1 EP0
W W W W W W W W
x x x x x x x x
Vedere la pagina 361
1 2 ... 357 358 359 360 361 362 363 364 365 366 367 ... 459 460

Commenti su questo manuale

Nessun commento