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3.
Technical Reference
3.1
FTPC Bridge Details
The FTPC Bridge is the interface bridge between the expansion cards, your PC, and the various
applications such as PSoC Express™, PSoC Designer™, and the PSoC Programmer utility.
Since the FTPC Bridge enumerates as a special type of 'combo device' that contains a PSoC Mini-
Prog interface, the standard PSoC Programmer utility can identify and communicate with the FTPC
bridge. This ensures that your FirstTouch Kit is automatically compatible with both PSoC Express
and PSoC Designer.
The schematic for the FTPC Bridge shown in
5
D
V50
F1
350mA
Resettable Fuse
J2
1
VBUS
R4
27
2
DM
R5
27
3
DP
4
GND
5
C
S1
6
S2
USB A RA PLUG SMD
R7
100
R6
100K
C6
0.01 uFd
B
V50
D1
R13
1K
1
2
RADIAL
LED Blue
A
5
CY3270 PSoC® FirstTouch Guide, Document # 001-15945 Rev. **
Figure 3-1. FTPC Bridge Schematic
4
V50
A
+
C2
C3
C4
C5
10 uFd 10v
0805
0805
0805
0.1 uFd
0.1 uFd
0.1 uFd
DM
21
DP
20
XRES894
ISSP-RADON
36
ISSP_DAT
R8
45
SPI_nSS
R1
Zero
54
100
P02
46
P03
53
P04
47
P05
52
ISSP_XRES
48
ISSP_CLK
51
ISSP-RADON
DAT894
25
CLK894
18
26
SPI_MISO
R16
Zero
17
27
SDA_MOSI
R15
Zero
16
28
SCL_SCLK
R14
Zero
15
41
DETECT
42
TYPE
43
56
44
55
LED_ALIVE
CY8C24894 QFN56
4
Figure 3-1
is found on the CD included in the kit.
3
V50
J1
1
2
XRES894
3
CLK894
4
DAT894
5
ISSP894
ISSP-RADON
V50
U1
DM
DP
XRES
33
P0_0
P3_0
10
P0_1
P3_1
34
P0_2
P3_2
9
P0_3
P3_3
35
P0_4
P3_4
8
P0_5
P3_5
P0_6
7
P0_7
P3_7
37
P1_0
P4_0
6
P1_1
P4_1
38
P1_2
P4_2
5
P1_3
P4_3
39
P1_4
P4_4
4
P1_5
P4_5
40
P1_6
P4_6
3
P1_7
P4_7
TP0
29
P2_0
P5_0
2
14
P2_1
P5_1
TP2
30
P2_2
P5_2
1
13
P2_3
P5_3
TP4
31
P2_4
P5_4
12
P2_5
P5_5
TP6
32
P2_6
P5_6
11
P2_7
P5_7
LED_ALIVE
24
P7_0
23
P7_7
3
2
V50
A
+
C1
8x2 0.100" FEMALE Expansion Receptacle
22 uFd 10v
NO LOAD
J3
1
2
VEXP_IN
VLOCAL
3
4
GND
VEXP_OUT
ISSP_XRES
5
6
ISSP_XRES
SDA-MOSI
ISSP_CLK
7
8
ISSP_CLK
SCL-SCLK
ISSP_DAT
9
10
ISSP_DAT
GPIO5
TYPE
11
12
EXP_TYPE
GPIO4
SPI_MISO
13
14
MISO
GPIO3
SPI_nSS
15
16
SPI_nss
GPIO2
8X2 PIN RECPT RA
R3
100K
R9
P05
GPIO5
NO LOAD
R10
P04
GPIO4
NO LOAD
R11
P03
GPIO3
NO LOAD
R12
P02
GPIO2
NO LOAD
PCB: PDCR-9403
CYPRESS SEMICONDUCTOR © 2007
Title
FIRST TOUCH PC BRIDGE
Size
Document Number
B
REF-14210
Date:
Thursday, June 21, 2007
2
1
D
DETECT
SDA_MOSI
SCL_SCLK
GPIO5
GPIO4
GPIO3
GPIO2
R2
C
100K
B
A
Rev
**
Sheet
1
of
1
1
17
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