ATA6613-EK Atmel, ATA6613-EK Datasheet - Page 227

• Manufacturer Part Number: ATA6613-EK
• Description: BOARD DEMO LIN-MCM FOR ATA6613
• Manufacturer: Atmel

Specifications of ATA6613-EK

• Main Purpose: Interface, LIN + MCU
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ATA6613
• Primary Attributes: LIN-SBC (System-Basis-Chip) Transceiver, LIN 2.0, Voltage Regulator, Window Watchdog
• Secondary Attributes: 16 kB Flash, 4 Power Modes: Pre-Normal, Normal, Sleep, Silent, 48-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

6.18.6.3
9111H–AUTO–01/11
USART MSPIM Control and Status Register n B - UCSRnB
• Bit 7 - RXCIEn: RX Complete Interrupt Enable
• Bit 6 - TXCIEn: TX Complete Interrupt Enable
• Bit 5 - UDRIE: USART Data Register Empty Interrupt Enable
• Bit 4 - RXENn: Receiver Enable
• Bit 3 - TXENn: Transmitter Enable
• Bit 2:0 - Reserved Bits in MSPI mode
Initial Value
Read/Write
Writing this bit to one enables interrupt on the RXCn Flag. A USART Receive Complete
interrupt will be generated only if the RXCIEn bit is written to one, the Global Interrupt Flag
in SREG is written to one and the RXCn bit in UCSRnA is set.
Writing this bit to one enables interrupt on the TXCn Flag. A USART Transmit Complete
interrupt will be generated only if the TXCIEn bit is written to one, the Global Interrupt Flag
in SREG is written to one and the TXCn bit in UCSRnA is set.
Writing this bit to one enables interrupt on the UDREn Flag. A Data Register Empty inter-
rupt will be generated only if the UDRIE bit is written to one, the Global Interrupt Flag in
SREG is written to one and the UDREn bit in UCSRnA is set.
Writing this bit to one enables the USART Receiver in MSPIM mode. The Receiver will
override normal port operation for the RxDn pin when enabled. Disabling the Receiver will
flush the receive buffer. Only enabling the receiver in MSPI mode (i.e. setting RXENn=1
and TXENn=0) has no meaning since it is the transmitter that controls the transfer clock
and since only master mode is supported.
Writing this bit to one enables the USART Transmitter. The Transmitter will override nor-
mal port operation for the TxDn pin when enabled. The disabling of the Transmitter
(writing TXENn to zero) will not become effective until ongoing and pending transmissions
are completed, i.e., when the Transmit Shift Register and Transmit Buffer Register do not
contain data to be transmitted. When disabled, the Transmitter will no longer override the
TxDn port.
When in MSPI mode, these bits are reserved for future use. For compatibility with future
devices, these bits must be written to zero when UCSRnB is written.
Bit
RXCIEn
R/W
7
0
TXCIEn
R/W
6
0
UDRIE
R/W
5
0
RXENn
R/W
Atmel ATA6612/ATA6613
4
0
TXENn
R/W
3
0
R
2
1
-
R
1
1
-
R
0
0
-
UCSRnB
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