Cypress CY7C67300 Manual De Usuario

Document #: 38-08015 Rev. *J

Page 40 of 99

The Device n Endpoint n Address register is used as the base
pointer into memory space for the current Endpoint transaction.
There are a total of eight endpoints for each of the two ports. All
endpoints have the same definition for their Device n Endpoint n
Address register.

 (Bits [15:0])

The Address field sets the base address for the current trans-
action on a signal endpoint.

■

Device n Endpoint 0 Count Register [Device 1: 0x0204 Device 2: 0x0284]

■

Device n Endpoint 1 Count Register [Device 1: 0x0214 Device 2: 0x0294]

■

Device n Endpoint 2 Count Register [Device 1: 0x0224 Device 2: 0x02A4]

■

Device n Endpoint 3 Count Register [Device 1: 0x0234 Device 2: 0x02B4]

■

Device n Endpoint 4 Count Register [Device 1: 0x0244 Device 2: 0x02C4]

■

Device n Endpoint 5 Count Register [Device 1: 0x0254 Device 2: 0x02D4]

■

Device n Endpoint 6 Count Register [Device 1: 0x0264 Device 2: 0x02E4]

■

Device n Endpoint 7 Count Register [Device 1: 0x0274 Device 2: 0x02F4]

  

The Device n Endpoint n Count register designates the
maximum packet size that can be received from the host for OUT
transfers for a single endpoint. This register also designates the
packet size to be sent to the host in response to the next IN token
for a single endpoint. The maximum packet length is 1023 bytes
in ISO mode. There are a total of eight endpoints for each of the
two ports. All endpoints have the same definition for their Device
n Endpoint n Count register.

 (Bits [9:0])

The Count field sets the current transaction packet length for a
single endpoint.

Write all reserved bits with ’0’.

Reserved

Count...

-

-

-

-

-

-

R/W

R/W

X

X

X

X

X

X

X

X

...Count

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

X

X

X

X

X

X

X

X