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UM0193
ARMIC30 schematic diagrams
Figure 26.
Reset, LED, Clock, Boot and JTAG circuit schematics
Reset
User LEDs
5V
5V
5V
5V
P4.9
P4.10
P4.11
P4.12
D10
LED green 1206
D10
LED green 1206
R40
1k5
R40
1k5
D9
LED green 1206
D9
LED green 1206
R41
1k5
R41
1k5
R43
1k5
R43
1k5
D12
LED green 1206
D12
LED green 1206
R42
1k5
R42
1k5
D11
LED green 1206
D11
LED green 1206
Clock
XTAL1
XTAL2
C15
15p
C15
15p
C14
15p
C14
15p
Y1
8MHz
Y1
8MHz
R6
1M5
R6
1M5
R5
1k
R5
1k
Boot mode selection
nRST
5V
5V
M
M0
1
2
3
J6
JMP3
J6
JMP3
C17
1n
C17
1n
1
2
3
J5
JMP3
J5
JMP3
C16
100n
C16
100n
R8
1k
R8
1k
T1
BC847C
T1
BC847C
R10
47k
R10
47k
R9
3k3
R9
3k3
3V3
3V3
3V3
C18
100n
C18
100n
C51
100n
C51
100n
+
C52
10M/16V
+
C52
10M/16V
JTAG
nRST_EXT
3V3
3V3
3V3
3V3
3V3
3V3
3V3
3V3
nJTRST
JTDI
JTMS
JTCK
JTDO
R16
10k
NA
R16
10k
NA
R21
10k
R21
10k
R20
10k
R20
10k
R18
10k
R18
10k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
J7
CON20A
J7
CON20A
R19
10k
R19
10k
D2
BZX84C3V3/SOT
D2
BZX84C3V3/SOT
R17 430R
R17 430R
R15
10k
NA
R15
10k
NA
R14
10k
R14
10k
R13
10k
R13
10k
R12
10k
R12
10k
R11
10k
NA
R11
10k
NA
nRST_EXT
5V
5V
nRST
SW1
SW1
R7
4k7
R7
4k7
GND
1
RST
2
MR
3
VCC
4
U2
STM811
U2
STM811
D1
BAT54A/SOT
D1
BAT54A/SOT