Rainbow Electronics W90P710CDG User Manual

Page 225

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W90P710CD/W90P710CDG

Publication Release Date: September 19, 2006

- 225 -

Revision B2

USB Endpoint C Control Register (EPC_CTL)

REGISTER

ADDRESS

R/W

DESCRIPTION

RESET VALUE

EPC_CTL

0xFFF06084

R/W

USB endpoint C control register

0x0000_0000

31

30

29

28

27

26

25

24

Reserved

23

22

21

20

19

18

17

16

Reserved

15

14

13

12

11

10

9

8

Reserved

7

6

5

4

3

2

1

0

Reserved EPC_ZERO EPC_STL_CLR EPC_THRE EPC_STL

EPC_RDY

EPC_RST EPC_EN

BITS

DESCRIPTIONS

[31:7]

Reserved

[6]

EPC_ZERO

Send zero length packet back to HOST

[5]

EPC_STL_CLR

Clear the Endpoint C stall(WRITE ONLY)

[4]

EPC_THRE

Endpoint C threshold (only for ISO)
1: once available space in FIFO over 16 bytes, DMA accesses
memory
0: once available space in FIFO over 32 bytes, DMA accesses
memory

[3]

EPC_STL

Set the Endpoint C stall

[2]

EPC_RDY

The memory is ready for Endpoint C to access

[1]

EPC_RST

Endpoint C reset

[0]

EPC_EN

Endpoint C enable

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