Configuration - NEC V850ES/F 3-L Series User Manual

32-bit single-chip microcontroller
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Chapter 15

15.2 Configuration

INTUDnT
INTUDnR
INTUDnS
f
or f
XP1
XP2
f
/2
XP1
f
/4
XP1
. . .
f
/1024
XP1
ASCKD0
Note
Note: External clock ASCKD0 is only available for UARTD0
Figure 15-1
Note
392
• On-chip dedicated baud rate generator
• MSB-/LSB-first transfer selectable
• Transmit/receive data inverted input/output possible
• 13 to 20 bits selectable for the SBF (Sync Break Field) in the LIN (Local
Interconnect Network) communication format
– Recognition of 11 bits or more possible for SBF reception in LIN
communication format
– SBF reception flag provided
• SBF reception can be detected during data communication.
• Bus monitor function to keep data consistency of the transmit data
The block diagram of the UARTDn is shown below.
Reception unit
UDnRX
Reception
Receive shift
controller
register
Send and receive
data comparison
Filter
Baud rate
generator
Selector
UDnCTL1
UDnCTL0
UDnCTL2
Block diagram of Asynchronous Serial Interface UARTDn
For the configuration of the baud rate generator, see Figure 15-11 on
page 419.
User's Manual U18743EE1V2UM00
Asynchronous Serial Interface (UARTD)
Internal bus
Transmission unit
Transmission
controller
Baud rate
generator
UDnSTR
Internal bus
UDnTX
Transmit
shift register
Selector
TXDDn
RXDDn
UDnOTP0
UDnOTP1

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