Dear TI team.
I would like to check to migrate RM57L843 to TMS570LC4357.
I heard TMS570LC4357 is a big-endian from TI.
Please let me know bit order of TMS570LC4357.
We had designed a control system using RM57L843 MCU. Our control system has a special dual port RAM by interfacing EMIF. Its endianness is a little-endian.
Can we use the same PCB of RM57L843 for TMS570LC4357?
Do we have to change data lines(D0~D7 and D8~D15)?
For example, if I write 0x1234( 0001 0010 0011 0100),
1. on the little-endian system, lower address=0x34 and higher address=0x12.
2. on the big-endian system, lower address=0x12 and higher address=0x34,
Please check which is right for TMS570LC4357?
case 1: (This is the same on RM57L843)
| D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 | |
| 0x13(0001 0011) | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 |
case 2: (Do I have to change data lines as follows for using TMS570LC4357?)
| D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 | |
| 0x13(0001 0011) | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
Best regards,
Sunny
