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): 30/92頁
文件大?。?/td> 317K
代理商: TUSB3410VF
4
10
4.3.12 IEPSIZXY_n: Output Endpoint X-/Y-Buffer Size (n = 1 to 3)
7
6
5
4
3
2
1
0
RSV
S6
S5
S4
S3
S2
S1
S0
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- and Y-buffer size:
0000.0000b Size = 0
0000.0001b Size = 1 byte
:
:
0011.1111b Size = 63 bytes
0100.0000b Size = 64 bytes
Any value
100.0001b may result in unpredictable results.
Reserved = 0
7
RSV
x
4.4
Endpoint-0 Descriptor Registers
Unlike registers EDB
1 to EDB
3, which are defined as memory entries in SRAM, endpoint
0 is described by a set
of four registers (two for output and two for input). The registers and their respective addresses, used for EDB
0
description, are defined in Table 4
6. EDB
0 has no base-address register, since these addresses are hardwired into
FEF8 and FEF0. Note that the bit positions have been preserved to provide consistency with EDB
n (n = 1 to 3).
Table 4
6. Input/Output EDB-0 Registers
ADDRESS
FF83
FF82
REGISTER NAME
OEPBCNT_0
OEPCNFG_0
DESCRIPTION
BASE ADDRESS
Output endpoint_0: Byte count register
Output endpoint_0: Configuration register
FEF0
FF81
FF80
IEPBCNT_0
IEPCNFG_0
Output endpoint_0: Byte count register
Output endpoint_0: Configuration register
FEF8
4.4.1
IEPCNFG_0: Input Endpoint-0 Configuration Register (Addr:FF80)
7
6
5
4
3
2
1
0
UBME
RSV
TOGLE
RSV
STALL
USBIE
RSV
RSV
R/W
R/O
R/O
R/O
R/W
R/W
R/O
R/O
BIT
NAME
RESET
FUNCTION
1
0
RSV
0
Reserved = 0
2
USBIE
0
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 No stall
STALL = 1 USB stall condition. If set by the MCU a STALL handshake is initiated and the bit is cleared
automatically by the next setup transaction.
4
RSV
0
Double buffer enable
DBUF = 0 Primary buffer only (X-buffer only)
DBUF = 1 Toggle bit selects buffer
5
TOGLE
0
USB toggle bit. This bit reflects the toggle sequence bit of DATA0, DATA1.
6
RSV
0
Reserved = 0
7
UBME
0
UBM enable/disable bit. Set/cleared by the MCU
UBME = 0 UBM cannot use this endpoint
UBME = 1 UBM can use this endpoint
4.4.2
IEPBCNT_0: Input Endpoint-0 Byte Count Register (Addr:FF81)
7
6
5
4
3
2
1
0
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