Samsung S5PC100, User Manual

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S5PC100 USER’S MANUAL (REV1.0) CCAN
8.5-27
6.2.20 IF2 Arbitration 2 Register (CAN_IF2_A2, R/W, Address = 0xEC70_0094, 0xEC80_0094)
•
CAN0_IF2_A2, R/W, Address = 0xEC70_0094
•
CAN1_IF2_A2, R/W, Address = 0xEC80_0094
CANn_IF1_A2
CANn_IF2_A2
Bit Description R/W Reset Value
MsgVal [15] Message Valid
1 = The Message Object is configured and should be
considered by the Message Handler.
0 = The Message Object is ignored by the Message
Handler.
R/W 0
Xtd [14] Extended Identifier
1 = The 29-bit("extended") Identifier is used for this
Message Object.
0 = The 11-bit("standard") Identifier is used for this
Message Object.
R/W 0
Dir [13] Message Direction
1 = Direction = transmit. On TxRqst, the respective
Message Object is transmitted as a Data Frame. On
reception of a Remote Frame with matching identifier, the
TxRqst bit of this Message Object is set (if RmtEn=1'b1)
0 = Direction = receive. On TxRqst, a Remote Frame with
the identifier of this Message Object is transmitted. On
reception of a Data Frame with matching identifier, that
message is stored in this Message Object
R/W 0
ID28-16 [12:0] Message Identifier
ID28-ID0: 29-bit Identifier ("Extended Frame")
ID28-ID18:11-bit Identifier ("Standard Frame")
R/W 0
NOTES :
1. The CPU must reset the MsgVal bit of all unused Messages Objects during the initialization before it resets bit Init in the
CAN Control Register. This bit must also be reset before the identifier Id28-0, the control bits Xtd, Dir, or the Data Length
Code DLC3-0 are modified, or if the Messages Object is no longer required.
2. If 11-bit ("standard") Identifiers are used for a Message Object, the identifiers of received Data Frames are written
into bits ID28 to ID18. For acceptance filtering, only these bits together with mask bits Msk28 to Msk18 are considered.