Cypress EZ-USB FX3 User Manual

EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 616
DSCR_BUFFER
0x20
10.25.7 DSCR_BUFFER
Descriptor Buffer Base Address Register
This register is only modified by the adapter when being read from memory. This register is not intended to be modified by
software directly.
31:0 BUFFER_ADDR[31:0] The base address of the buffer where data is written. This address is not necessarily word-aligned to
allow for header/trailer/length modification.
DSCR_BUFFER Descriptor Buffer Base Address Register 0x20
b31 b30 b29 b28 b27 b26 b25 b24
BUFFER_ADDR[31:24]
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
SCK_COUNT Transfer Count Register
b23 b22 b21 b20 b19 b18 b17 b16
BUFFER_ADDR[23:16]
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
SCK_COUNT Transfer Count Register
b15 b14 b13 b12 b11 b10 b9 b8
BUFFER_ADDR[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
SCK_COUNT Transfer Count Register
b7 b6 b5 b4 b3 b2 b1 b0
BUFFER_ADDR[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