TSS461 ATMEL Corporation, TSS461 Datasheet - Page 40

• Manufacturer Part Number: TSS461
• Description: VAN Data Link Controller
• Manufacturer: ATMEL Corporation

Figure 23. Message Buffer Structure for Transmission
Message Status (Pointed by: Message Pointer Register)
RRAK: Received RAK
Bit
RRNW: Received RNW
Bit
RRTR: Received RTR
Bit
RM_L[4:0]: Message
Length of the Received
Frame
40
TSS461E
Message Length & Status Register
Transmitted DATA Frame
SOF
M_L [4..0]
(no significant value in case of message to be transmitted)
This bit is the RAK bit coming from the COM field of the received frame.
This bit is the RNW bit coming from the COM field of the received frame.
This bit is the RTR bit coming from the COM field of the received frame.
If the DATA field of the received frame included DATA0 to DATAn, RM_L[4:0] = n+1, even if the
reserved length (Message Length & Status Register) is larger.
ID [11..0]
CHER CHTx CHRx
RRAK
7
Transmitted
Transmitted
Message
RRNW
(Nothing)
6
DATA n
DA TA 0
DATA 0
RRTR
5
RM_L4
M_P + 0x80 + n + 2
M_P + 0x80
4
DATA n
DRAK
Message Pointer Register
RM_L3
3
FCS
M_P [6..0]
RM_L2
2
RM_L1
EOF
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4194C–AUTO–01/06
RM_L0
0