Cypress CY7C67200 manual Host n SOF/EOP Count Register R/W, Host n SOF/EOP Counter Register R

Models: CY7C67200

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Host n SOF/EOP Count Register [R/W]

CY7C67200

Host n SOF/EOP Count Register [R/W]

Host 1 SOF/EOP Count Register 0xC092

Host 2 SOF/EOP Count Register 0xC0B2

Figure 27. Host n SOF/EOP Count Register

Bit #

15

 

14

13

12

11

 

10

9

8

Field

Reserved

 

 

 

 

Count...

 

 

Read/Write

-

 

-

R/W

R/W

R/W

 

R/W

R/W

R/W

Default

0

 

0

1

0

1

 

1

1

0

 

 

 

 

 

 

 

 

 

 

 

Bit #

7

6

5

4

 

3

2

1

0

Field

 

 

 

 

...Count

 

 

 

Read/Write

R/W

R/W

R/W

R/W

 

R/W

R/W

R/W

R/W

Default

1

1

1

0

 

0

0

0

0

 

 

 

 

 

 

 

 

 

 

Register Description

The Host n SOF/EOP Count register contains the SOF/EOP Count Value that is loaded into the SOF/EOP counter. This value is loaded each time the SOF/EOP counter counts down to zero. The default value set in this register at power-up is 0x2EE0, which will generate a 1-ms time frame. The SOF/EOP counter is a down counter decremented at a 12-MHz rate. When this register is read, the value returned is the programmed SOF/EOP count value.

Count (Bits [13:0])

The Count field sets the SOF/EOP counter duration.

Reserved

All reserved bits must be written as ‘0’.

Host n SOF/EOP Counter Register [R]

Host 1 SOF/EOP Counter Register 0xC094

Host 2 SOF/EOP Counter Register 0xC0B4

Figure 28. Host n SOF/EOP Counter Register

Bit #

15

 

14

13

12

11

 

10

9

8

Field

Reserved

 

 

 

 

Counter...

 

 

Read/Write

-

 

-

R

R

R

 

R

R

R

Default

X

 

X

X

X

X

 

X

X

X

 

 

 

 

 

 

 

 

 

 

 

Bit #

7

6

5

4

 

3

2

1

0

Field

 

 

 

 

...Counter

 

 

 

Read/Write

R

R

R

R

 

R

R

R

R

Default

X

X

X

X

 

X

X

X

X

 

 

 

 

 

 

 

 

 

 

Register Description

The Host n SOF/EOP Counter register contains the current value of the SOF/EOP down counter. This value can be used to determine the time remaining in the current frame.

Counter (Bits [13:0])

The Counter field contains the current value of the SOF/EOP down counter.

Document #: 38-08014 Rev. *G

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Cypress CY7C67200 manual Host n SOF/EOP Count Register R/W, Host n SOF/EOP Counter Register R