FORMIKE ELECTRONIC CO. LTD. KWH-EMW110-XX Manuale Utente
These 6 pins and GPIO_4, GPIO_14 are used for software programming.
Table3-1.
Programming mode and working mode Truth table
Pin
Programming
mode
Working mode
DIGTEST
H
L/NC
VDDFLASH
H
/
IO04
H
/
IO14
L/NC
/
3.5. Working mode
EMW110 supports four working modes: bootloader mode, normal work mode, ATE test mode, and
QC mode. These mode are configured by three pins: BOOT, STATUS, ELINK.
Note: in below table, 1 means high voltage level, 0 means low voltage level. All the three IOs are
internally initialized as input pull high.
Table3-2.
Working mode truth table
Pin
Pin Function
GPIO_31
BOOT
GPIO_30
STATUS
GPIO_29
ELINK
Bootloader mode
0
1
1
Normal work mode
1
x
x
ATE test (RF test)
0
1
0
QC mode
0
0
1