参数资料
型号: M66291GP
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP48
封装: 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件页数: 73/128页
文件大小: 928K
代理商: M66291GP
M66291GP/HP
Rev 1.01 2004.11.01 page 47 of 122
(3) BSWP (Byte Swap Mode) Bit (b7)
This bit sets the endian of the EP0_FIFO Data Register.
When this bit is set to “0”, the EP0_FIFO Data Register gets such as little endian.
When this bit is set to “1”, the EP0_FIFO Data Register gets such as big endian.
b15~b8
b7~b0
Little Endian
odd number address
even number address
Big Endian
even number address
odd number address
Note:
Don’t set this bit to “1” when the mode is set to 8-bit (set by the Octl bit or *HWR/*BYTE pin).
(4) ISEL (Buffer Select) Bit (b0)
This bit selects the buffer transfer direction of the endpoint 0 used in the control transfer.
When “0” is written to this bit, the buffer for control write transfer is valid.
When “1” is written to this bit, the buffer for control read transfer is valid.
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