Rainbow-electronics ATmega64C1 Manual de usuario descargar pdf (Pagina 197)

197

7647A–AVR–02/08

ATmega32/64/M1/C1

These bits are reserved for future use. For compatibility with future devices, they must be written

to zero when CANIDTn are written.

When a remote or data frame is received, these bits do not operate in the comparison but they

are updated with un-predicted values.

• Bit 2 – RTRTAG: Remote Transmission Request Tag

RTR bit of the remote or data frame to send.

This tag is updated with the corresponding value of the remote or data frame received. In case

of Automatic Reply mode, this bit is automatically reset before sending the response.

• Bit 1 – Reserved Bit

This bit is reserved for future use. For compatibility with future devices, it must be written to zero

when CANIDTn are written.

When a remote or data frame is received, this bit does not operate in the comparison but it is

updated with un-predicted values.

• Bit 0 – RB0TAG: Reserved Bit 0 Tag

RB0 bit of the remote or data frame to send.

This tag is updated with the corresponding value of the remote or data frame received.

V2.0 part B

• Bit 31:3 – IDT28:0: Identifier Tag

Identifier field of the remote or data frame to send.

This field is updated with the corresponding value of the remote or data frame received.

• Bit 2 – RTRTAG: Remote Transmission Request Tag

RTR bit of the remote or data frame to send.

This tag is updated with the corresponding value of the remote or data frame received. In case

of Automatic Reply mode, this bit is automatically reset before sending the response.

• Bit 1 – RB1TAG: Reserved Bit 1 Tag

RB1 bit of the remote or data frame to send.

This tag is updated with the corresponding value of the remote or data frame received.

• Bit 0 – RB0TAG: Reserved Bit 0 Tag

RB0 bit of the remote or data frame to send.

This tag is updated with the corresponding value of the remote or data frame received.

16.11.4 CAN Identifier Mask Registers -

CANIDM1, CANIDM2, CANIDM3, and CANIDM4

V2.0 part A

Bit 15/7 14/6 13/5 12/4 11/3 10/2 9/1 8/0

- - - - - RTRMSK - IDEMSK CANIDM4

--------CANIDM3

IDMSK

0-----CANIDM2

IDMSK

3 CANIDM1

1 2 ... 192 193 194 195 196 197 198 199 200 201 202 ... 365 366

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