12
12-35
Serial I/O
12.4 Receive Operation in CSIO Mode
32180 Group User's Manual (Rev.1.0)
Figure 12.4.2 Receive Operation during CSIO Mode (Hardware Processing)
Receive data
Set the SIO Receive Control Register
reception finished bit to "1"
Store the received data
in the receive buffer register
Set the SIO Receive Control Register
overrun error and receive error sum bits to "1"
Receive conditions
met?
Overrun error ?
Y
Y
N
N
End of CSIO receive
operation
CSIO receive operation
starts
12.4.4 About Successive Reception
If the following conditions are met when data reception has finished, data may be received successively.
• The receive enable bit is set to "1".
• Transmit conditions are met.
• No overrun error has occurred.
To Next Page
Need help?
General
