ELNEC s. r. o.
EM Microelectronic EM6812 microcontrollers
Following signals are use for In-system programming of
EM6812 microcontrollers.
RESET reset
TEST/VPP switch to programming mode
SCLK(PB5) clock
SDIO(PB7) data input / output
VDD power supply
VSS ground
SDIO(PB7) and SCLK(PB5) signals are used by the EM6812
for In-system programming, therefore target system mustn’t
affect these signals during In-system programming to avoid
programming errors.
ELNEC’s recommended circuit for EM6812:
R1
10k
R2
10k
VSS
C1
22n
G
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