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參數資料
型號: W81E381D
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: FULL SPEED USB INTEGRATED MICROCONTROLLER
中文描述: FLASH, 12 MHz, MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48
文件頁數: 26/63頁
文件大小: 695K
代理商: W81E381D
W81E381D/W81E381AD
Publication Release Date: January 2002
- 26 - Revision 0.52
4.5.8
Register Descriptions - USB Function SFRs (E6)
RXCNT
Address: S:E6H
Reset State: XXX0 0000H
Receive FIFO Byte-Count Register (Endpoint-Indexed). Store the byte count for the data packet
received in the receive FIFO specified by EPINDEX.
7
6
5
4
3
2
1
0
-
-
-
BC4
BC3
BC2
BC1
BC0
Bit
Number
7
Bit
Mnemonic
-
Function
Reserved:
The value read from this bit is indeterminate. Write zero to this bit.
Reserved:
The value read from this bit is indeterminate. Write zero to this bit.
Reserved:
The value read from this bit is indeterminate. Write zero to this bit.
Receive Byte Count Bit 4:
Store received byte count. Maximum is sixteen bytes.
Receive Byte Count Bit 3:
Store received byte count. Maximum is sixteen bytes.
Receive Byte Count Bit 2:
Store received byte count. Maximum is sixteen bytes.
Receive Byte Count Bit 1:
Store received byte count. Maximum is sixteen bytes.
Receive Byte Count Bit 0:
Store received byte count. Maximum is sixteen bytes.
6
-
5
-
4
BC4
3
BC3
2
BC2
1
BC1
0
BC0
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