50.9.19 CAN Message Data Low Register

Name:	CAN_MDLx
Offset:	0x0214 + x*0x20 [x=0..7]
Reset:	0x00000000
Property:	Read/Write


Bit	31	30	29	28	27	26	25	24
	MDL[31:24]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	23	22	21	20	19	18	17	16
	MDL[23:16]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	15	14	13	12	11	10	9	8
	MDL[15:8]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	7	6	5	4	3	2	1	0
	MDL[7:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0

Bits 31:0 – MDL[31:0] Message Data Low Value

When CAN_MSRx.MRDY is set, the lower 32 bits of a received message can be read or written by the software application. Otherwise, the MDL value is locked by the CAN controller to send/receive a new message.

In Receive with Overwrite, the CAN controller may modify the MDL value while the software application reads the MDHx and MDLx registers. To check that MDHx and MDLx do not belong to different messages, the application has to check CAN_MSRx.MMI. In this mode, the software application must re-read CAN_MDHx and CAN_MDLx, while MMI is set.

Bytes are received/sent on the bus in the following order:

1. CAN_MDL[7:0]

2. CAN_MDL[15:8]

3. CAN_MDL[23:16]

4. CAN_MDL[31:24]

5. CAN_MDH[7:0]

6. CAN_MDH[15:8]

7. CAN_MDH[23:16]

8. CAN_MDH[31:24]