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TUSB5052 数据表(PDF) 28 Page - Texas Instruments

部件名 TUSB5052
功能描述  USB to 2-Serial 1-Parallel Controller With Configurable Optional Hub
PDF  84 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TUSB5052 数据表(HTML) 28 Page - Texas Instruments

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4–10
4.3.9
IEPBCTX_n: Input Endpoint X-Byte Count (n = 1 to 7)
NAK
C6
C5
C4
C3
C2
C1
C0
7
6
5
4
32
10
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
BIT
NAME
RESET
FUNCTION
6–0
C[6:0]
x
X-Buffer Byte count:
X000.0000b Count = 0
X000.0001b Count = 1 byte
:
:
X011.1111b Count = 63 bytes
X100.0000b Count = 64 bytes
Any value
≥ 100.0001b may result in unpredictable results.
7
NAK
x
NAK = 0
NAK = 1
No valid data in buffer. Ready for host IN
Buffer is empty (gives NAK response to host-OUT request)
4.3.10 IEPBBAY_n: Input Endpoint Y-Buffer Base-Address (n = 1 to 7)
A10
A9
A8
A7
A6
A5
A4
A3
7
6
5
4
32
10
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
BIT
NAME
RESET
FUNCTION
7–0
A[10:3]
x
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 but note that the UBM or DMA does
not
change this value at the end of a transaction.
4.3.11 IEPBCTY_n: Input Endpoint Y-Byte Count (n = 1 to 7)
NAK
C6
C5
C4
C3
C2
C1
C0
7
6
5
4
32
10
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
BIT
NAME
RESET
FUNCTION
6–0
C[6:0]
x
Y-Byte count:
X000.0000b Count = 0
X000.0001b Count = 1 byte
:
:
X011.1111b Count = 63 bytes
X100.0000b Count = 64 bytes
Any value
≥ 100.0001b may result in unpredictable results.
7
NAK
x
NAK = 0
NAK = 1
No valid data in buffer. Ready for host IN transaction
Buffer is empty (gives NAK response to host-IN request)



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