AN91267 Datasheet, PDF (47/62 Pages) Ramtron International Corporation – Getting Started with PSoC

Figure 59. Universal Digital Block Diagram
Getting Started with PSoC® 4 BLE
You do not necessarily need to know any hardware description language (HDL) to use UDBs. PSoC Creator, Cypress’s
development tool for PSoC 4 BLE, can generate the required function for you from a schematic. If required, advanced users
can implement custom logic on UDBs using Verilog.
For more information, refer to the following application notes.
 ^{AN62510  Implementing State Machines with PSoC 3, PSoC 4, and PSoC 5LP}
 ^{AN82156  PSoC 3, PSoC 4, and PSoC 5LP  Designing PSoC Creator Components with UDB Datapaths}
 ^{AN82250  PSoC 3, PSoC 4, and PSoC 5LP  Implementing Programmable Logic Designs with Verilog}
Applications
The use of programmable digital peripherals in BLE applications is shown in Table 4.
Table 4. Applications of Programmable Digital Peripherals
Applications
Sensor Hub
Digital Peripherals
I²C (digital sensor interface), PWM (actuators), I2S (voice input)
Health and Fitness PWM (user interface), Counter (waveform peak measurement), SPI (external memory interface)
Industrial
UART (modbus), Counter (event counting)
Home Automation PWM (garage door control), PWM (lighting control)
Programmable Analog
PSoC 4 BLE provides the industry’s best-in-class analog integration. The analog system includes Continuous Time Block mini
(CTBm) blocks, a fast 12-bit SAR ADC, low-power comparators, capacitive touch-sensing (CapSense), and a segment LCD
direct drive.
Continuous Time Block mini (CTBm)
PSoC 4 BLE contains two CTBm blocks, each consisting of two programmable opamps and a switch matrix. You can
configure each opamp individually as a comparator, voltage follower, or an opamp with external feedback. If required, the
CTBm block can be configured to function even in device Deep-Sleep mode.
For more information, refer to the following Component datasheets:
 ^{PSoC 4 Opamp}
 ^{PSoC 4 Voltage Comparator}
www.cypress.com
Document No. 001-91267 Rev. *D
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