SRT X-BAND RADAR SYSTEMS
FUNCTIONAL DESCRIPTION
304202P003 3.6 Rev. C
3.2.1.6 Microprocessor and Gate Array
3.2.1.6.1 General Description
PCB
The heart of SRT_Control Board, is an advanced 32 Bit MCU (Micro-controller
Unit) (Chapter 9, Figure 9.1.18), with highly sophisticated, on chip, peripheral
capabilities and performing the function of:
− managing all functions of the SRT unit on the basis of
commands/data from the Display Unit
− preparing the feed-back signals to be sent out to the Indicator unit
− executing all internal processing to assure the SRT units control
and monitoring
The Microprocessor used in the board is the MCF5211 with these
characteristics:
− 16 KB SRAM,
− 128 KB Flash Memory,
− Two UARTs,
− Queued serial peripheral interface (QSPI) with four peripheral chip
selects,
− Four 32-bit timer channels with DMA capability,
− Four 16-bit timer channels for capture, compare and pulse width
modulation (PWM),
− Four - channel 16-bit/8-channel 8-bit PWM generator,
− Two periodic interrupt timers (PITs) for alarm and countdown timing,
− Eight - channel 12-bit ADC
− System integration (PLL, SW watchdog)
− Up to 33 general-purpose I/O
The SRT unit management is performed by the Microprocessor that does not
require any external PROM or RAM elements. Its own memory, in fact, has
sufficient capacity to store the Operative Program. it is using an external U30
EEPROM, (Chapter 9, Figure 9.1.17 pos.7) for store transmitting parameters.
The necessary clock pulse of 50 MHz generated by the crystal oscillator.
In Chapter 9, Figure 9.1.19 are displayed the Microprocessor and Gate Array
general configuration, the main sub-systems and how they relate to the pins of
the MCU.
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