Cypress EZ-USB FX3 User Manual

EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 619
DSCR_CHAIN
0x28
10.25.9 DSCR_CHAIN
Descriptor Chain Pointers Register
This register is only modified by the adapter when being read from memory. Only write to this register when socket is in sus-
pend state or disabled state.
31:16 WR_NEXT_DSCR[15:0] Descriptor number of the next task for producer. A value of 0xFFFF signals end of this list.
15:0 RD_NEXT_DSCR[15:0] Descriptor number of the next task for consumer. A value of 0xFFFF signals end of this list.
DSCR_CHAIN Descriptor Chain Pointers Register 0x28
b31 b30 b29 b28 b27 b26 b25 b24
WR_NEXT_DSCR[15:8]
R/W R/W R/W R/W R/W R/W R/W R/W
R/W R/W R/W R/W R/W R/W R/W R/W
XXXXXXXX
DSCR_CHAIN Descriptor Chain Pointers Register
b23 b22 b21 b20 b19 b18 b17 b16
WR_NEXT_DSCR[7:0]
R/W R/W R/W R/W R/W R/W R/W R/W
R/W R/W R/W R/W R/W R/W R/W R/W
XXXXXXXX
DSCR_CHAIN Descriptor Chain Pointers Register
b15 b14 b13 b12 b11 b10 b9 b8
RD_NEXT_DSCR[15:8]
R/W R/W R/W R/W R/W R/W R/W R/W
R/W R/W R/W R/W R/W R/W R/W R/W
XXXXXXXX
DSCR_CHAIN Descriptor Chain Pointers Register
b7 b6 b5 b4 b3 b2 b1 b0
RD_NEXT_DSCR[7:0]
R/W R/W R/W R/W R/W R/W R/W R/W
R/W R/W R/W R/W R/W R/W R/W R/W
XXXXXXXX
Bit Name Description

Cypress EZ-USB FX3 Specifications

General

Brand	Cypress
Model	EZ-USB FX3
Category	Controller
Language	English