TUSB5052 datasheet(28/82 Pages) TI

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4−8

4.3.3

OEPBCTX_n: Output Endpoint X-Byte Count (n = 1 to 7)

NAK

R/W

BIT

NAME

RESET

FUNCTION

6−0

C[6:0]

X-Buffer Byte count:

000.0000b Count = 0

000.0001b Count = 1 byte

011.1111b Count = 63 bytes

100.0000b Count = 64 bytes

Any value

≥ 100.0001b may result in unpredictable results.

NAK

NAK = 0

NAK = 1

No valid data in buffer. Ready for host-OUT request

Buffer contains a valid packet from host (gives NAK response to host-OUT request).

4.3.4

OEPBBAY_n: Output Endpoint Y-Buffer Base-Address (n = 1 to 7)

A10

R/W

BIT

NAME

RESET

FUNCTION

7−0

A[10:3]

A[10:3] of Y-buffer base address (padded with 3-LSB of zeros for a total of 11-bits). This value is set by the MCU.

UBM or DMA uses this value as the start-address of a given transaction. Furthermore, UBM or DMA does not

change this value at the end of a transaction.

4.3.5

OEPBCTY_n: Output Endpoint Y-Byte Count (n = 1 to 7)

NAK

R/W

BIT

NAME

RESET

FUNCTION

6−0

C[6:0]

Y-Byte count:

000.0000b Count = 0

000.0001b Count = 1 byte

011.1111b Count = 63 bytes

100.0000b Count = 64 bytes

Any value

≥ 100.0001b may result in unpredictable results.

NAK

NAK = 0

NAK = 1

No valid data in buffer. Ready for host-OUT request

Buffer contains a valid packet from host (gives NAK response to host-OUT request).

TUSB5052 датащи(PDF) 28 Page - Texas Instruments

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