CY8C54 CYPRESS [Cypress Semiconductor], CY8C54 Datasheet - Page 46

• Manufacturer Part Number: CY8C54
• Description: Programmable System-on-Chip (PSoC)
• Manufacturer: CYPRESS [Cypress Semiconductor]

The PSoC Creator software program provides a user friendly
interface to configure the analog connections between the GPIO
and various analog resources and also connections from one
analog resource to another. PSoC Creator also provides
component libraries that allow you to configure the various
analog blocks to perform application specific functions (PGA,
transimpedance amplifier, voltage DAC, current DAC, and so
on). The tool also generates API interface libraries that allow you
to write firmware that allows the communication between the
analog peripheral and CPU/Memory.
8.1 Analog Routing
The CY8C38 family of devices has a flexible analog routing
architecture that provides the capability to connect GPIOs and
different analog blocks, and also route signals between different
analog blocks. One of the strong points of this flexible routing
architecture is that it allows dynamic routing of input and output
connections to the different analog blocks.
8.1.1 Features
Document Number: 001-55036 Rev. *A
Flexible, configurable analog routing architecture
16 Analog globals (AG) and two analog mux buses
(AMUXBUS) to connect GPIOs and the analog blocks
G PIO
Port
A
N
A
L
O
G
R
O
U
T
N
G
I
DAC
DAC
SAR
Figure 8-1. Analog Subsystem Block Diagram
PRELIMINARY
Array
DSI
CM P
SC/CT Block
SC/CT Block
CapSense Subsystem
CM P
Com parators
Distribution
Interface
Analog
Clock
CM P
SC/CT Block
SC/CT Block
8.1.2 Functional Description
Analog globals (AGs) and analog mux buses (AMUXBUS)
provide analog connectivity between GPIOs and the various
analog blocks. There are 16 AGs in the CY8C38 family. The
analog routing architecture is divided into four quadrants as
shown in
(AGL[0..3], AGL[4..7], AGR[0..3], AGR[4..7]). Each GPIO is
connected to the corresponding AG through an analog switch.
The analog mux bus is a shared routing resource that connects
to every GPIO through an analog switch. There are two
AMUXBUS routes in CY8C38, one in the left half (AMUXBUSL)
and one in the right half (AMUXBUSR), as shown in
Each GPIO is connected to one analog global and one analog
mux bus
8 Analog local buses (abus) to route signals between the
different analog blocks
Multiplexers and switches for input and output selection of the
analog blocks
PSoC
Registers
Config &
Status
Reference
Precision
CM P
Figure
®
5: CY8C54 Family Data Sheet
8-2. Each quadrant has four analog globals
AHB
PHUB
SAR
DAC
DAC
A
N
A
L
O
G
R
O
U
T
N
G
I
CPU
GPIO
Port
Figure
Page 46 of 93
8-2.
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