Part Number:DS90UB949-Q1
SCL High Time SCL Low Time 默认值是7F,是怎么计算得到的
Amy Luo:
您好,
SCL_HIGH_TIME = 38.0952ns * (TX_SCL_HIGH + 5),也就是
SCL_HIGH_TIME=(1/26.25MHZ) * (value-of-Register 0x18+5)
这里默认设置是5us,即SCL_HIGH_TIME=5us;
5us=38.0952ns(value-of -R18+5),那么value-of -R18=126.25,换成16进制数是0x7F;