Introduction to XCF32PFSG48C

The XILINX XCF32PFSG48C is a configuration PROM (Programmable Read-Only Memory) device from Xilinx’s Platform Flash XL family. It is designed to store configuration data for Xilinx FPGAs (Field Programmable Gate Arrays) and can be used for both initial configuration and dynamic reconfiguration of the FPGA.

Key Features of XCF32PFSG48C

• 32 Mbit (4 MB) storage capacity
• 48-pin Plastic Fine-pitch Ball Grid Array (PFBGA) package
• Serial Peripheral Interface (SPI) for configuration and data access
• Fast configuration times with SPI clock speeds up to 100 MHz
• Low standby current (<50 µA)
• Endurance of 20,000 program/erase cycles
• Data retention of over 20 years
• Operating temperature range: -40°C to +125°C

FPGA Configuration Using XCF32PFSG48C

Configuration Modes

The XCF32PFSG48C supports various configuration modes for Xilinx FPGAs:

1. Master Serial Mode
2. Slave Serial Mode
3. JTAG Mode
4. Boundary Scan Mode

Master Serial Mode

In Master Serial mode, the FPGA generates the configuration clock (CCLK) and the XCF32PFSG48C acts as a slave device, providing configuration data on the D0 pin in response to the clock signal.

Slave Serial Mode

In Slave Serial mode, an external source provides the configuration clock (CCLK), and the XCF32PFSG48C acts as a slave device, providing configuration data on the D0 pin in response to the clock signal.

JTAG Mode

JTAG (Joint Test Action Group) mode allows the XCF32PFSG48C to be accessed and programmed through the JTAG interface, which is commonly used for debugging and testing purposes.

Boundary Scan Mode

Boundary Scan mode, also known as IEEE 1149.1 or JTAG mode, enables testing of interconnects between the XCF32PFSG48C and the FPGA without accessing the internal logic of either device.

Configuration Sequence

The typical configuration sequence using the XCF32PFSG48C is as follows:

1. Power-on or assert the PROGRAM_B pin to initiate configuration.
2. The FPGA samples the mode pins (M[2:0]) to determine the configuration mode.
3. The FPGA initiates the configuration process by asserting the INIT_B pin.
4. The XCF32PFSG48C provides configuration data to the FPGA based on the selected configuration mode.
5. Once configuration is complete, the FPGA asserts the DONE pin, indicating a successful configuration.

Programming the XCF32PFSG48C

Programming Methods

The XCF32PFSG48C can be programmed using various methods:

1. In-System Programming (ISP) using JTAG
2. In-System Programming using SPI
3. Offline Programming using a PROM programmer

In-System Programming (ISP) using JTAG

ISP using JTAG allows the XCF32PFSG48C to be programmed while it is mounted on the target board. The JTAG interface is used to access and program the device.

In-System Programming using SPI

ISP using SPI enables programming of the XCF32PFSG48C through the SPI interface while it is mounted on the target board. This method requires an external SPI controller to access and program the device.

Offline Programming using a PROM programmer

Offline programming involves removing the XCF32PFSG48C from the target board and programming it using a dedicated PROM programmer. After programming, the device is reinstalled on the target board.

Programming Tools

Xilinx provides various tools for programming the XCF32PFSG48C:

1. Vivado Design Suite
2. iMPACT (Integrated Multi-Platform Adaptive Configuration Tool)
3. Xilinx Indirect Programming Language (XIPL)

Vivado Design Suite

Vivado Design Suite is a comprehensive design environment for Xilinx FPGAs and SoCs. It includes tools for programming the XCF32PFSG48C, such as the Vivado Programmer and the Tcl scripting interface.

iMPACT

iMPACT is a standalone programming tool for Xilinx FPGAs and PROMs. It supports both in-system and offline programming of the XCF32PFSG48C.

Xilinx Indirect Programming Language (XIPL)

XIPL is a scripting language used for indirect programming of Xilinx PROMs, including the XCF32PFSG48C. XIPL scripts can be executed using the Vivado Design Suite or iMPACT.

XCF32PFSG48C Applications

The XCF32PFSG48C is widely used in various applications that require FPGA configuration storage:

1. Aerospace and Defense
2. Automotive
3. Industrial Automation
4. Medical Equipment
5. Telecommunications

Aerospace and Defense

In aerospace and defense applications, the XCF32PFSG48C is used to store configuration data for FPGAs in systems such as:

• Radar and sonar systems
• Avionics
• Satellite communication systems
• Missile guidance systems

The device’s wide operating temperature range and high reliability make it suitable for these demanding environments.

Automotive

The XCF32PFSG48C is used in automotive applications to store configuration data for FPGAs in systems such as:

• Advanced Driver Assistance Systems (ADAS)
• In-vehicle infotainment systems
• Engine control units (ECUs)
• Vehicle-to-everything (V2X) communication systems

The device’s extended temperature range and high endurance ensure reliable operation in automotive environments.

Industrial Automation

In industrial automation, the XCF32PFSG48C is used to store configuration data for FPGAs in applications such as:

• Programmable Logic Controllers (PLCs)
• Robotics
• Machine vision systems
• Industrial networking equipment

The device’s fast configuration times and low standby current make it suitable for these applications.

Medical Equipment

The XCF32PFSG48C is used in medical equipment to store configuration data for FPGAs in devices such as:

• Medical imaging systems (e.g., MRI, CT, and ultrasound)
• Patient monitoring systems
• Surgical robots
• Diagnostic equipment

The device’s high reliability and long data retention ensure the integrity of the stored configuration data in these critical applications.

Telecommunications

In telecommunications, the XCF32PFSG48C is used to store configuration data for FPGAs in systems such as:

• Wireless base stations
• Optical network equipment
• Network switches and routers
• Satellite communication systems

The device’s fast configuration times and high endurance enable efficient system updates and maintenance in these applications.

XCF32PFSG48C Pin Configuration and Descriptions

The XCF32PFSG48C comes in a 48-pin Plastic Fine-pitch Ball Grid Array (PFBGA) package. The following table lists the pin names and their descriptions:

Pin Name	Description
VCC	Power supply
GND	Ground
PROGRAM_B	Active-low program input
INIT_B	Active-low initialization input/output
DONE	Configuration done output
D0/DIN	Serial data input/output
D1/CCLK	Serial data input/configuration clock input/output
CSI_B	Active-low chip select input
M[2:0]	Mode selection inputs
TDI	JTAG test data input
TDO	JTAG test data output
TMS	JTAG test mode select input
TCK	JTAG test clock input
TRST_B	Active-low JTAG test reset input

FAQ

1. What is the storage capacity of the XCF32PFSG48C?

The XCF32PFSG48C has a storage capacity of 32 Mbit (4 MB).

2. What configuration modes does the XCF32PFSG48C support?

The XCF32PFSG48C supports Master Serial, Slave Serial, JTAG, and Boundary Scan configuration modes.

3. How can I program the XCF32PFSG48C?

The XCF32PFSG48C can be programmed using in-system programming (ISP) through JTAG or SPI interfaces, or offline using a PROM programmer.

4. What is the maximum SPI clock speed supported by the XCF32PFSG48C?

The XCF32PFSG48C supports SPI clock speeds up to 100 MHz, enabling fast configuration times.

5. What is the operating temperature range of the XCF32PFSG48C?

The XCF32PFSG48C has an operating temperature range of -40°C to +125°C, making it suitable for various industrial and automotive applications.

Conclusion

The XILINX XCF32PFSG48C is a versatile and reliable configuration PROM device designed for storing configuration data for Xilinx FPGAs. Its high storage capacity, fast configuration times, and support for various configuration modes make it an ideal choice for a wide range of applications, including aerospace and defense, automotive, industrial automation, medical equipment, and telecommunications.

The device’s extended temperature range, high endurance, and long data retention ensure reliable operation in demanding environments. With the availability of various programming methods and tools, designers can easily integrate the XCF32PFSG48C into their FPGA-based systems, enabling efficient configuration management and system updates.

As FPGA-based systems continue to evolve and expand into new application domains, the XCF32PFSG48C remains a trusted solution for storing and managing FPGA configuration data, ensuring the optimal performance and reliability of these systems.