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Unformatted text preview: summarized in Table 13.1 on page 359. The processor is capable of operating at up to 39 MHz, but the data shown in the table are representative of a typical GSM application. The chip I/Os operate at 3.3 V, but the core logic typically operates at 2.5 V The Ericsson-VLSI Bluetooth Baseband Controller 359 Figure 13.9 Table 13.1 Process Metal layers Vdd (typical) Bluetooth Baseband Controller die photograph. Bluetooth characteristics. 4,300,000 MIPS 20mm2 Power 0-13 MHz MIPS/W 12 75 mW 160 0.25 urn Transistors 3 Die area 2.5V Clock Digital radio The advent of low-cost high-performance digital systems has enabled radio communication to find new application areas as epitomized by the rapid growth of the mobile phone market. Digital communication enables data to be sent in a form where most errors caused by interference can be detected and corrected. Digital technology also enables sophisticated radio techniques such as frequency hopping to be controlled, further reducing the effects of interference. 360 Embedded ARM Applications Bluetooth extends this advantage to much smaller communication networks and points to a future where not only the individual but also all of their personal data appliances will be invisibly connected to each other and to global networks. Bluetooth system-on-Chip application The Bluetooth application area has become a focus for activities aimed at integrating digital and radio functions onto a single CMOS chip. The typical shown in Figure 13.8 on page 358 can then be implemented on a single chip. The EEC block is also available as licensable intellectual property for use in other AMBA-based designs. 13.5 The ARM7500 and ARM7500FE
The ARM7500 is a highly integrated single-chip computer which combines the major components of the Acorn Rise PC (apart from the memory) onto a single chip. It was the first such system chip to employ as its processor macrocell a full ARM CPU, including cache and memory management, rather than just a basic integer processor core. The ARM7500FE adds the FPA10 floating-point coprocessor as an on-chip macrocell, and...
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- Spring '09