参数资料
型号: S3P9664-SM
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
封装: 0.300 INCH, SOP-24
文件页数: 18/148页
文件大小: 784K
代理商: S3P9664-SM
S3C9664/P9664 (Preliminary Spec)
UNIVERSAL SERIAL BUS
13-9
ENDPOINT 0 WRITE COUNT REGISTER (EP0BCNT)
EP0BCNT register contains data count value, some monitoring and flow control flag. EP0BCNT is located at
F3H, Page 0 and read addressable.
Bit7
DATA_TOGGLE : This bit is a read only flag. This flag is just for monitoring the data toggle sequence.
Bit6
TOKEN :.This flag is for monitoring. If this value is set then it means the last received token packet is
SETUP token and if the value is “0” then the last received token packet is OUT or IN packet.
Bit5
OVER_8 :.If device receive over 8 bytes SETUP or OUT transaction then the device does not answer to
these transaction and set this flag as a error indicator.
Bit4
ENABLE :. MCU set this bit for disabling endpoint 0. Device does not answer to any traffic if addressed
to endpoint 0 until this bit is cleared.
Bit3
EP0WRT_CNT[3].
Bit2
EP0WRT_CNT[2].
Bit1
EP0WRT_CNT[1].
Bit0
EP0WRT_CNT[0] : SIE store data count after receive valid data from host. The maximum value is 8.
And if MCU downloading the FIFO then this value also decreased according to remain data count.
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