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參數(shù)資料
| 型號： | TH6503 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB Low-Speed Interface |
| 中文描述： | USB低速接口 |
| 文件頁數(shù)： | 13/24頁 |
| 文件大?。?/td> | 342K |
| 代理商： | TH6503 |
13
TH6503 USB Low-Speed Interface
USBFlagRegister
(write only)
Internal address: b101
Size:
8 bits
Register
Description
(continued)
USBAddressRegister
(write only)
Internal address: b110
Size:
Bit
Number
Mnemonic
7
X
6-0
AD6-0
8 bits
Bit
Bit
Number
Bit
Mnemonic
Reset
Status
Function
7
FI2
1
Flush EP2 IN
clears EP2 FIFO
is set and reset automatically depending on the actual FIFO Status
must be set before EP2 of the EP1/2 FIFO can be overwritten by the
microcontroller
Flush EP1 IN
clears EP1 FIFO
is set and reset automatically depending on the actual FIFO Status
must be set before EP1 of the EP1/2 FIFO can be overwritten by the
microcontroller
Flush EP0 IN
clears EP0 FIFO
is set and reset automatically depending on the actual FIFO Status
must be set before the EP0 FIFO can be overwritten by the
microcontroller
Busy OUT
blocks the EP0 OUT FIFO for the USB host
is set and reset automatically depending on the actual FIFO Status
TH6503 responds with no handshake for a USB host SETUP token or
with a NAK signal for an OUT token (NAK state)
to leave the NAK state, the microcontroller does an OutFIFO read
(the microcontroller rereads the last data)
STALL EP2
sets EP2 to STALL
TH6503 responds with a STALL for a USB host IN or OUT token
if address and EP2 have been decoded
only operative if EP2 is active
STALL EP1
sets EP1 to STALL
TH6503 responds with a STALL for a USB host IN or OUT token
if address and EP1 have been decoded
only operative if EP1 is active
STALL EP0 IN
sets EP0 IN to STALL
TH6503 responds with a STALL for a USB host IN token
if address and EP0 have been decoded
will be cleared after SETUP token
STALL EP0 OUT
sets EP0 OUT to STALL
TH6503 responds with a STALL for a USB host OUT token
if address and EP0 have been decoded
STALL is inoperative for a SETUP token from the USB host
SETUP clears STALL EP0 IN and STALL EP0 OUT bits
6
FI1
1
5
FI0
1
4
BO0
0
3
SI2
0
2
SI1
0
1
SI0
0
0
SO0
0
Reset
Status
0
0
Function
reserved
USB device address
USB address entered by microcontroller
zero after reset
microcontroller must decode the address from descriptor data after a
SETUP (SET_ADDRESS) token and write it in this register
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