ST18952

ST18952 DIGITAL SIGNAL PROCESSOR (DSP) CHIP PRELIMINARY DATA s s s Programmable D950 Core s Data calculation unit s Address calculation unit s Program control unit s Fast and flexible buses s 66MIPS - 15 ns instruction cycle time 16.5 Kwords data memory (RAM) 32 Kwords program memory (RA42 1714 01) s Interrupt controller s DMA controller s Serial input/output s Timer s Bus switch unit s Emulation unit s JTAG IEEE 1149.1 test access port TAP 16.5 Kwords data memory Emulation unit D950 core 32 Kwords program memory 2 Timers Bus switch unit 2 Serial I/O Interrupt controller DMA controller 12 January 98 The information in this datasheet is subject to change 42 1714 01 1/66 Table of Contents 1 2 3 4 5 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 D950Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.1 5.1 5.2 6 6.1 6.2 7 7.1 7.2 8 9 8.1 9.1 D950Core registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Internal memory resource . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...