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Chapter 34 CAN Controller
2.Register Description
If more than 32 message buffers are implemented, the following table gives an overview about the additional
flags:
Table 2-1 Additional flags when more than 32 message buffers exist
■ New Data Registers (NEWDT)
addr+0 addr+1 addr+2 addr+3
TREQR 4 & 3 TxRqst 64-33 (address 0x84) TxRqst64-57 TxRqst56-49 TxRqst48-41 TxRqst40-33
TREQR 6 & 5 TxRqst 96-65 (address 0x88) TxRqst96-89 TxRqst88-81 TxRqst80-73 TxRqst72-65
TREQR 8 & 7 TxRqst 128-97 (address 0x8C) TxRqst128-121
TxRqst120-
113
TxRqst112-
105
TxRqst104-97
NewDat32-1 New Data Bits (of all Message Objects)
0
No new data has been written into the data portion of this Message Object by the Message
Handler since last time this flag was cleared by the CPU.
1
The Message Handler or the CPU has written new data into the data portion of this Message
Object.
NewDat32-25
⇐ Bit no.
Read/write ⇒
(R) (R) (R) (R) (R) (R) (R) (R)
Default value⇒
(0) (0) (0) (0) (0) (0) (0) (0)
New Data Register 2 high byte
Address : Base + 0x90
H
15 14 13 12 11 10 9 8
NEWDT2H
NewDat24-17
⇐ Bit no.
Read/write ⇒
(R) (R) (R) (R) (R) (R) (R) (R)
Default value⇒
(0) (0) (0) (0) (0) (0) (0) (0)
Address :
Base + 0x
91H
765432 10
NEWDT2L
New Data Register 2 low byte
NewDat16-9
⇐ Bit no.
Read/write ⇒
(R) (R) (R) (R) (R) (R) (R) (R)
Default value⇒
(0) (0) (0) (0) (0) (0) (0) (0)
New Data Register 1 high byte
Address : Base + 0x92
H
15 14 13 12 11 10 9 8
NEWDT1H
NewDat8-1
⇐ Bit no.
Read/write ⇒
(R) (R) (R) (R) (R) (R) (R) (R)
Default value⇒
(0) (0) (0) (0) (0) (0) (0) (0)
Address :
Base + 0x
93H
765432 10
NEWDT1L
New Data Register 1 low byte