Cypress EZ-USB FX3 User Manual

EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 368
PP_DMA_SIZE
0xE0017E30
10.8.9 PP_DMA_SIZE
P-Port DMA Transfer Size Register
This register indicates the (remaining) size of the transfer. It is initialized to the number of bytes available in the buffer for
egress transfers and the size of the buffer for ingress transfers. This register can be modified by the AP for shorter ingress
transfers. The value read from this register is not valid unless DMA_XFER.SIZE_VALID is true.
15:0 DMA_SIZE[15:0] Size of DMA transfer. Number of bytes available for read/write when read, number of bytes to be
read/written when written.
PP_DMA_SIZE P-Port DMA Transfer Size Register 0xE0017E30
b15 b14 b13 b12 b11 b10 b9 b8
DMA_SIZE[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
00000000
PP_DMA_SIZE P-Port DMA Transfer Size Register
b7 b6 b5 b4 b3 b2 b1 b0
DMA_SIZE[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
00000000
Bit Name Description

Cypress EZ-USB FX3 Specifications

General

Brand	Cypress
Model	EZ-USB FX3
Category	Controller
Language	English