參數(shù)資料
型號: TUSB3410VF
英文描述: BUS CONTROLLER
中文描述: 總線控制器
文件頁數(shù): 26/92頁
文件大?。?/td> 317K
代理商: TUSB3410VF
4
6
Table 4
5. EDB Entries in RAM (n = 1 to 3)
OFFSET
ENTRY NAME
DESCRIPTION
07
EPSIZXY_n
I/O Endpoint_n: X/Y-buffer size
06
EPBCTY_n
I/O Endpoint_n: Y-byte count
05
EPBBAY_n
I/O Endpoint_n: Y-buffer base address
04
SPARE
Not used
03
SPARE
Not used
02
EPBCTX_n
I/O Endpoint_n: X-byte count
01
EPBBAX_n
I/O Endpoint_n: X-buffer base address
00
EPCNF_n
I/O Endpoint_n: Configuration
4.3.1
OEPCNF_n: Output Endpoint Configuration (n = 1 to 3) (Addr:FF08, FF10, FF18)
7
6
5
4
3
2
1
0
UBME
ISO=0
TOGLE
DBUF
STALL
USBIE
RSV
RSV
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
BIT
NAME
RESET
FUNCTION
1
0
RSV
x
Reserved = 0
2
USBIE
x
USB interrupt enable on transaction completion. Set/cleared by the MCU
USBIE = 0 No interrupt
USBIE = 1 Interrupt on transaction completion
3
STALL
0
USB stall condition indication. Set/cleared by the MCU
STALL = 0
Stall = 1
No stall
USB stall condition. If set by the MCU, a STALL handshake is initiated and the bit is cleared
by the MCU.
4
DBUF
x
Double-buffer enable. Set/cleared by the MCU
DBUF = 0 Primary buffer only (X-buffer only)
DBUF = 1 Toggle bit selects buffer
5
TOGLE
x
USB toggle bit. This bit reflects the toggle sequence bit of DATA0, DATA1
6
ISO
x
ISO = 0 Nonisochronous transfer. This bit must be cleared by the MCU since only nonisochronous transfer
is supported
7
UBME
x
UBM enable/disable bit. Set/cleared by the MCU
UBME = 0 UBM cannot use this endpoint
UBME = 1 UBM can use this endpoint
4.3.2
OEPBBAX_n: Output Endpoint X-Buffer Base Address (n = 1 to 3)
7
6
5
4
3
2
1
0
A10
A9
A8
A7
A6
A5
A4
A3
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 X-buffer base address (padded with 3 LSB of zeros for a total of 11 bits). This value is set by the
MCU. The UBM or DMA uses this value as the start-address of a given transaction. Note that the UBM or
DMA does not
change this value at the end of a transaction.
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