PSoC
®
Thermal Management Expansion Board Kit Guide, Doc. No. 001-89649 Rev. **
15
2.5 CY8CKIT-036 EBK 2x20 Pin Header
The 40-pin interface (2x20 pin header) provides a mechanism to connect CY8CKIT-036 EBK to a Cypress development kit
platform.
Table 2-2
lists the pin assignments of the 2x20 connector.
Table 2-2. 2x20 Connector Pin Assignments
Description
Signal
Pin
Pin
Signal
Description
Tachometer signal from Fan 4
TACH4
1
2
PWM4
PWM speed control for Fan 4
Tachometer signal from Fan 3
TACH3
3
4
PWM3
PWM speed control for Fan 3
Tachometer signal from Fan 2
TACH2
5
6
PWM2
PWM speed control for Fan 2
Tachometer signal from Fan 1
TACH1
7
8
PWM1
PWM speed control for Fan 1
Analog ground
AGND
9
10
NC
–
–
NC
11
12
NC
–
–
NC
13
14
NC
–
–
NC
15
16
NC
–
–
NC
17
18
NC
–
Analog ground
AGND
19
20
NC
–
Temperature diode current source
TD-I
21
22
TD-K
Temperature diode cathode
Temperature diode anode
TD-A
23
24
1-WIRE
One-wire temperature sensor
I
2
C temperature sensor output
T-SDA
25
26
T-SCL
I
2
C temperature sensor clock
PWM temperature sensor output
P-OUT
27
28
P-IN
PWM temperature sensor input
Analog ground
AGND
29
30
NC
–
Reserved
RESV
31
32
SM-ALT
Alert signal (I
2
C/SMBus/PMBus)
Serial data (I
2
C/SMBus/PMBus)
SM-SDA
33
34
SM-SCL
Serial clock (I
2
C/SMBus/PMBus)
3.3-V power from DVK
3.3 V
35
36
VADJ
Unused
Digital ground
DGND
37
38
5 V
5 V-power from DVK
Optional 12-V power from DVK
12 V
39
40
DGND
Digital ground
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