The Zatara® ZA9L0 is a highly integrated system-on-chip (SoC) microcontroller based on the ARM922T™ 32-bit/16-bit core and tailored to the specific requirements of point-of-sale (POS) terminal design and meet
the strict security requirements of the Payment Card Industry (PCI) Security Standards Council 2.0 specification. Running at 180MHz, the ZA9L0 is one of the
fastest high-security microcontrollers available. The ZA9L0 provides a rich set of features on a single chip that reduces the manufacturing cost and time-to-market for secure transaction products such as POS terminals, vending machines, and security panels. The Zatara ZA9L0 includes the essential security features required of a POS terminal. It also provides seamless interfaces to LCD displays and keypads, and includes a wide array of peripherals such as an ADC, DMAs, UARTs, GPIOs, and timers that add flexibility to control and differentiate
the system design.
System security is enhanced by a number of physical and logical protection mechanisms including environmental sensors (temperature, voltage, and frequency), true hardware random-number generator (RNG), real-time
clock (RTC), and 4KB of secure nonvolatile SRAM storage with fast erase capability upon tampering. On power-up, application code is first cryptographically verified for authenticity to ensure that attackers cannot
insert their own application code.
The ZA9L0 provides extensive communication support with three UARTs, two independent SPI™ ports, and ample GPIO pins to implement any communication
interface. The ZA9L0 also has a targeted set of peripherals to support PIN pad applications, including an LCD interface, multiple timers with PWM, watchdog,
and a 6-channel, 10-bit ADC.
Key Features
Applications/Uses
32-Bit ARM922T CPU Core
8KB/8KB I/D-Caches
MMU Supporting Linux® and Windows® Embedded CE Operating Systems
180MHz Performance
JTAG Embedded ICE Support
64KB Embedded Zero-Wait-State SRAM
Vectored Interrupt Controller
External Bus Interface
Dual External Bus Architecture (Primary and Secondary)
24-Bit Address, 16-Bit Data
Synchronous Flash
SDRAM in 16MB to 512MB Configurations
Power Management Unit
14MHz to 40MHz Oscillator and Phase-Locked Loop (PLL) Generated System Clocks
32.768kHz Oscillator for RTC
Clock Disable on a Peripheral-by-Peripheral Basis
Three Modes: Active, Idle, and Battery Backup
Real-Time Clock
Watchdog Timer (WDT)
Two Dedicated SPI Interfaces
Nine Timer/Counters
Three UARTs
1 x 8-Wire Interface
2 x 4-Wire Interface
POS Security Features for PCI Compliance
Voltage and Temperature Sensors
Sensors for Tamper Switches and Wire Mesh
Clock Frequency and Glitch Protection
Battery-Backed Secure Memory with Active Zeroization
Embedded Boot ROM
32-Bit Unique ID Number
NIST 800-22-Compliant Random-Number Generator
FIPS 180-2-Compliant SHA-1 Hash Generator
Display Controller Interface
Up to 76 General-Purpose Input/Output (GPIO) Pins
10-Bit ADC, 6-Channel, 45ksps
Eight independent DMA Channels
Voltage: Dual 1.8V and 3.3V Supplies
3.3V I/O Pins with 5V Tolerant I/O for UART and SPI
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