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ABOV Semiconductor Co., Ltd.
USInSCLR (USI0/1 SCL Low Period Register: For I2C mode) : 403DH/404DH (XSFR), n = 0 and 1
Initial value : 3FH
This register defines the high period of SCL when it operates in I2C master mode.
The base clock is SCLK, the system clock and the period is calculated by the formula:
t
SCLK
X (4 X USInSCLR +2) where t
SCLK
is the period of SCLK.
USInSAR (USI0/1 Slave Address Register: For I2C mode) : 403FH/404FH (XSFR), n = 0 and 1
Initial value : 00H
These bits configure the slave address of I2C when it operates in I2C slave mode.
This bit decides whether I2C allows general call address or not in I2C slave mode.
Ignore general call address
Allow general call address