TSS463 ATMEL Corporation, TSS463 Datasheet - Page 42

• Manufacturer Part Number: TSS463
• Description: VAN Data Link Controller with Serial Interface
• Manufacturer: ATMEL Corporation

Figure 28. 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
42
TSS463B
Message Length & Status Register
Transmitted DATA Frame
SOF
M_L [4..0]
ID [11..0]
CHER CHTx CHRx
•
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 and Status Register) is larger.
RRAK
(no significant value in case of message to be transmitted)
7
Transmitted
Transmitted
RRNW
Message
(Nothing)
6
DATA n
DA TA 0
DATA 0
RRTR
5
RM_L4
M_P + 0x80 + n + 2
4
M_P + 0x80
DATA n
DRAK
Message Pointer Register
RM_L3
3
FCS
M_P [6..0]
RM_L2
2
RM_L1
EOF
1
4102E–AUTO–12/04
RM_L0
0