Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
User16286
Level 4
Level 4
First like received
I'm currently using the TC234 QSPI module in master mode, and the MTSR output is idle high.
Is there a way to change this so the output idle polarity is low?

Toshi
0 Likes
2 Replies
cwunder
Employee
Employee
100 solutions authored 5 likes given 50 likes received
From the QSPI hardware perspective, in master mode the MTSR output will maintain the last bit value transmitted.

Say for example you have 8-bit data in MSB mode. The data written is 0x00 the MTSR signal will maintain a "0" or low level, if you wrote data 0x01 the MTSR signal will maintain a "1' or high level.
NXTY_Tamura
Level 5
Level 5
Distributor - NEXTY (Japan)
25 replies posted 100 sign-ins 10 solutions authored

Hi, cwunder.


In the TC399 (KIT_A2G_TC399_5V_TRB_S), I have confirmed the same behavior for the MTSR signal in QSPI master mode on the actual device.

Can I expect the same behavior for QSPI on the TC399 from a hardware standpoint as shown below?

" in master mode the MTSR output will maintain the last bit value transmitted."

Thank you!

Best Regards.

0 Likes