CMS32L051 User Manual |Chapter 12 Universal Serial Communication Unit
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(2) Operation Steps
Figure 12-119 Initial setup step for the address segment transmission
initial configuration starts
configure PER0 register
configure SPSm register
configure SMRmn register
and SMRmr register
configure SCRmn register
configure SDRmn register
configure SOm register
configure port
initial configuration completes
release universal serial communication unit
from reset state, start providing clock.
configure operational clock
configure operational mode..etc.
configure communication format
configure transmit baud rate (configure
operationl clock(fMCK) scaled transmission
clock)
configure serial data(SOmn) and serial
clock(CKOmn) initial output voltage (set "1")
via configure port register, port mode
register and port output mode register, set
data output, clock output and N-channel
open-drain output of target channel to valid.
Note At the end of the initial setup, Simplified I2C (IIC00, IIC01, IIC10, IIC11, IIC20 IIC21) is output disabled and is in
the operation stop state.
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