CY8CKIT-020 Cypress Semiconductor Corp, CY8CKIT-020 Datasheet - Page 61

• Manufacturer Part Number: CY8CKIT-020
• Description: KIT PSOC CY8C28 FAMILY PROCESSOR
• Manufacturer: Cypress Semiconductor Corp
• Series: PSoC®r
• Type: MCUr

Specifications of CY8CKIT-020

• Contents: Board, Software and Documentation
• Silicon Manufacturer: Cypress
• Core Architecture: PSoC
• Features: Programmable System-on-chip Design Methodology And Architecture
• Kit Contents: PSoC CY8C28 Module, Doc, CD
• Silicon Core Number: CY8C28
• Silicon Family Name: PSoC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: CY8C28 Family
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 428-3036

2.1.6.2
2.1.6.3
2.1.6.4
CY8CKIT-020 PSoC Development Kit Guide, Doc. # 001-56971 Rev. **
SW4 - Processor Reset Button
The board has a push button switch that resets the PSoC device attached to the processor module.
One side of the switch is tied to the XRES pin of the processor module socket. The other end of the
switch is tied to the HW_RESET pin of the processor module socket. Doing this allows the module
designer to tie the HW_RESET line either high or low, depending on which direction the processor
reset is active.
Note PSoC 1 devices are active high reset. Therefore, a light pull-down resistor may be necessary
on the XRES pin of designs with these devices to avoid unintentional device resets. PSoC 3 and
PSoC 5 devices are active low reset. Therefore, a light pull-up resistor may be necessary on the
XRES pin of designs with these devices to avoid unintentional device resets.
U8 - External MHz Oscillator
The board supports the use of an external high frequency 8-pin PDIP oscillator. The speed of the
oscillator supported is dependent on the specifications of the PSoC device used. The output of this
oscillator is routed to P15_4 on receptacle P2 and TP62 near P2 of the DVK board.
P1, P2, P3 and P4 - Processor Module Receptacles
Processor modules provide modularity to this board. Sockets P1-P4 are used to connect a proces-
sor module to the board. All supported GPIOs (including special I/Os), along with VDD DIG, VDD
ANLG, 5V, 3.3V, VBUS and VBAT (only connected to a surface mount pad on the board) are con-
nected to these receptacles. In addition, each of the VDDIO power pins are connected to these
receptacles. The full speed USB D+ and D- signals are also connected to one of the sockets. Pro-
cessor reset is connected to P1. Any "no connect" pins are brought out to surface mount test pads.
Table 2-4. Connector Pin Assignments - Processor Module Sockets
Pin Number
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
GND
VDDD
V5_0
GND
VBAT
DM
V3_3
DP
VBUS
VDDIO1
P5_6
P5_7
P5_4
P5_5
P12_6
P12_7
P1_6
P1_7
P1_4
P1_5
P1 (West)
GND
GND
P6_1
P6_0
P6_3
P6_2
P15_5
P15_4
P9_2
P9_0
P2_1
P2_0
P2_3
P2_2
VDDIO2
P9_3
P2_5
P2_4
P2_7
P2_6
P2 (North)
GND
GND
P12_2
P12_3
P8_0
P8_1
P4_0
P4_1
P8_2
P8_3
P0_0
P0_1
P0_2
P0_3
VDDIO0
VDDA
P0_4
P0_5
P0_6
P0_7
P3 (East)
GND
P7_7
NC7
NC8
NC5
NC6
NC3
NC4
P7_6
P7_5
P12_0
P12_1
P3_6
P3_7
P7_4
VDDIO3
P3_4
P3_5
P3_2
P3_3
P4 (South)
Board Specifications and Layout
61