Users Manual

TPM541 series
www.sercomm.com 8
Cat-M1/NB Module
6. Special hardware configuration pins
6.1. SWD(JP17):
TBD
6.2. Isolation control(JP3):
3.3V to 1.8V level shift ICs(U3,U10,U11) control :
 H: Turn off level shift ICs
 L: Turn on level shift ICs
Default is connected to Low.
6.3. Debug Selection(JP12):
HW pin for EJTAG chain select :
 PD for MIPS chain.
 PU for ARM chain.
Default setting is internal PD in TPM541.
6.4. Anti Tamper(JP11): TBD
User can connect PMU_AT_OUT to PMU_AT_IN in order to protect its device or module from
tampering.
Default setting is floating on EVK.