ST SPEAr320, User Manual, Page: 26 / 38

Schematics
UM10
15
2
6
/3
8
D
oc
ID
1
8124
R
e
v
1
Figure 9. Miscellaneous interfaces schematic
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
4 4
3 3
2 2
1 1
Spear300
CPU Board
2.3 Miscellaneus interface
4
8
20 Oct 2009
JTAG Connector
Boot Sel
Reset management
CS0
CS1
RTC Power
BOOT_SEL
TEST0
TEST1
TEST3
SMI_CLK
SMI_nWE0
SMI_DATAIN
SMI_nWE1
SMI_DATAOUT
SMI_nCS1
SMI_nCS0
RTC_VDD1V5
TEST2
TEST4
AIN0
AIN2
AIN4
AIN6
AIN1
AIN3
AIN5
AIN7
AIN[0..7]
SMI_CLK
SMI_DATAIN
SMI_DATAIN SMI_DATAIN
SMI_CLK SMI_CLK
SMI_DATAOUT SMI_DATAOUT
SMI_nCS0
SMI_nCS1 SMI_nCS1
INRESET
TDO
TDO
DDR_EN
MCLK_VDD1V2
ADC_VREFP
ADC_VREFN
POWERGOOD
nTRST nTRST
TDI TDI
TMS TMS
TCK TCK
SMI_DATAOUT
DITH_PLL_VDD2V5
nRESET
TEST2
BOOT_SEL
TEST4
TEST3
TEST1
TEST0
ADC_AVDD2V5
MCLK_VDD2V5
ADC_AGND
ADC_VREFP
ADC_VREFN
AIN[0..7]
INRESET
nRESET
2.5V_SP
2.5V_SP
3.3V 3.3V
1.2V_SP
2.5V_SP
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
2.5V_SP
Rev
Date: Sheet
of
Board
Title
Code
Project
Rev
Date: Sheet
of
Board
Title
Code
Project
Rev
Date: Sheet
of
Board
Title
Code
Project
C30
0.1 uF X5R 10V
C30
0.1 uF X5R 10V
M25P64
U6
M25P64,NC
M25P64
U6
M25P64,NC
HOLD
1
Vcc
2
CSEL
7
SDO
8
WR-VPP
9
GND
10
SDI
15
CLK
16
NC
3
NC
4
NC
5
NC
6
NC
11
NC
12
NC
13
NC
14
C29
0.1 uF X5R 10V
C29
0.1 uF X5R 10V
R58
390 Kohm
R58
390 Kohm
R12
10 Kohm
R12
10 Kohm
R2
0
10 Kohm
R2
0
10 Kohm
C80
33 pF COG 50V
C80
33 pF COG 50V
J10
MOLEX 1.25MM 2W M J10
MOLEX 1.25MM 2W M
1
1
2
2
FB15
FERRITE
FB15
FERRITE
R78
0 ohm
,N
C
R78
0 ohm
,N
C
R32
1 Kohm
R32
1 Kohm
C77
10 nF X7R 50V
C77
10 nF X7R 50V
R13
10 Kohm
R13
10 Kohm
R44 0 Ohm R44 0 Ohm
R2
1
10 Kohm
R2
1
10 Kohm
Y2
24Mhz Y2
24Mhz
J5
STRIP-2X1-2.54-MD
J5
STRIP-2X1-2.54-MD
1
2
R79
0 ohm
,N
C
R79
0 ohm
,N
C
U8
BATT BR2032
U8
BATT BR2032
GND
3
+3V
1
+3V
2
R33
1 Kohm
R33
1 Kohm
C76
10 nF X7R 50V
C76
10 nF X7R 50V
R14
10 Kohm
R14
10 Kohm
R15
10 Kohm
R15
10 Kohm
FB12
FERRITE
FB12
FERRITE
R34
1 Kohm R34
1 Kohm
GND
Y1
32.768Khz
GND
Y1
32.768Khz
C28
0.1 uF X5R 10V
C28
0.1 uF X5R 10V
A1
A2
K
D3
D BAV70
A1
A2
K
D3
D BAV70
R45
0 Ohm R45
0 Ohm
FB13
FERRITE
FB13
FERRITE
R53
121 Kohm
1%
R53
121 Kohm
1%
C31
0.
1 uF
X5R
10V
C31
0.
1 uF
X5R
10V
C34
0.1 uF X5R 10V
C34
0.1 uF X5R 10V
R1
6
10 Kohm
R1
6
10 Kohm
R55
150 Kohm
R55
150 Kohm
FB14
FERRITE
FB14
FERRITE
M25P64
U5
M25P64
M25P64
U5
M25P64
HOLD
1
Vcc
2
CSEL
7
SDO
8
WR-VPP
9
GND
10
SDI
15
CLK
16
NC
3
NC
4
NC
5
NC
6
NC
11
NC
12
NC
13
NC
14
R42
0 Ohm
R42
0 Ohm
C32
0.
1 uF
X5R
10V
C32
0.
1 uF
X5R
10V
Spear300
Jtag
Test
CL
O
C
K
ADC
SMI
Spear300
Jtag
Test
CL
O
C
K
ADC
SMI
nTRST
L16
TDI
L14
TMS
L13
TCK
L17
TDO
L15
TEST0
K16
TEST1
K15
TEST2
K14
TEST3
K13
TEST4
J15
BOOT_SEL
J14
DDR2_EN
J13
RTC_XI
E2
RTC_XO
E1
MCLK_XI
P1
MCLK_XO
P2
MRESET
M17
DIGITAL_REXT
G4
DIGITAL_GND_BCOMP
F4
RTC_GND
F2
MCLK_GND
P3
MCLK_GND_SUB
R3
MCLK_VDD1V2
R1
MCLK_VDD2V5
R2
RTC_VDD1V5
F1
DITH_PLL_VDD2V5
M4
DITH_PLL_VSS2V5
N4
DITH_PLL_AVDD_2V5
G2
DITH_PLL_AVSS_2V5
G1
ADC_AGND
N12
ADC_AVDD2V5
N13
ADC_VREFN
N14
ADC_VREFP
P14
AIN0
N16
AIN1
N15
AIN2
P17
AIN3
P16
AIN4
P15
AIN5
R17
AIN6
R16
AIN7
R15
SMI_CLK
N17
SMI_DATAIN
M13
SMI_DATAOUT
M14
SMI_CS0
M15
SMI_CS1
M16
R1
7
10 Kohm
R1
7
10 Kohm
2
3
4
5
61 ON
SW1
DIP SWITCH MICRO 6X SMD
2
3
4
5
61 ON
SW1
DIP SWITCH MICRO 6X SMD
1
2
3
4
5
6 7
8
9
10
11
12
STM811S
U7
STM811
STM811S
U7
STM811
GND
1
nRST
2
RST IN
3
VCC(3.3V)
4
C78
15 pF COG 50V
C78
15 pF COG 50V
R76
NC
R76
NC
IDC 10x2
J3
IDC 10X2 MD POL
IDC 10x2
J3
IDC 10X2 MD POL
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
C33
0.
1 uF
X5R
10V
C33
0.
1 uF
X5R
10V
R1
8
10 Kohm
R1
8
10 Kohm
R54
R 0603 0 OHM
R54
R 0603 0 OHM
C79
15 pF COG 50V
C79
15 pF COG 50V
R77
NC R77
NC
R11
10 Kohm
R11
10 Kohm
P1
SW-PB-SMD
P1
SW-PB-SMD
4
1
3 2
C27
0.1 uF X5R 10V
C27
0.1 uF X5R 10V
Q1
NPN BC848
Q1
NPN BC848
2
3
1
R1
9
10 Kohm
R1
9
10 Kohm
R43 0 Ohm R43 0 Ohm
C81
33 pF COG 50V
C81
33 pF COG 50V