參數(shù)資料
型號(hào): AT43USB325E-AC
廠商: ATMEL CORP
元件分類(lèi): 微控制器/微處理器
英文描述: Multimedia USB Keyboard Controller with Embedded Hub
中文描述: 8-BIT, 12 MHz, RISC MICROCONTROLLER, PQFP64
封裝: 1.40 MM HEIGHT, PLASTIC, MS-026-ACB, LQFP-64
文件頁(yè)數(shù): 72/109頁(yè)
文件大?。?/td> 643K
代理商: AT43USB325E-AC
72
3355C–USB–4/05
AT43USB325
8.3
Endpoint Registers
8.3.1
Hub Endpoint 0 Control Register – HENDP0_CR
8.3.2
Function Endpoint 0 Control Register – FENDP0_CR
Bit 7 – EPEN: Endpoint Enable
0 = Disable endpoint
1 = Enable endpoint
Bit 6..4 – Reserved
These bits are reserved in the AT43USB325 and will read as zero.
Bit 3 – DTGLE: Data Toggle
Identifies DATA0 or DATA1 packets. This bit will automatically toggle and requires clearing by
the firmware only in certain special circumstances.
Bit 2 – EPDIR: Endpoint Direction
0 = Out
1 = In
Bit 1, 0 – EPTYPE: Endpoint Type
These bits must be programmed as 0, 0.
Bit
7
6
5
4
3
2
1
0
$1FE7
EPEN
DTGLE
EPDIR
EPTYPE1
EPTYPE0
HENDP0_CR
$24 ($44)
EPEN
DTGLE
EPDIR
EPTYPE1
EPTYPE0
FENDP0_CR
Read/Write
R/W
R
R
R
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
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