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HD6417727BP160CV Datasheet, PDF (61/1098 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/ SH7700 Series | |||
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Section 1 Overview and Pin Functions
Item
DSP
Features
⢠Mixture of 16-bit and 32-bit instructions
⢠32-/40-bit internal data bus
⢠Multiplier, ALU, barrel shifter and DSP register
⢠16 bits x 16 bits â 32-bit one cycle multiplier
⢠Large DSP data register
⯠Six 32-bit data registers
⯠Two 40-bit data registers
⢠Extended Harvard Architecture for DSP data bus
⯠Two data buses
⯠One instruction bus
⢠Max. four parallel operations: ALU, multiply and two load or store
⢠Two addressing units to generate addresses for two memory access
⢠DSP data addressing modes: increment, indexing (with or without modulo
addressing)
⢠Zero overhead repeat loop control
⢠Conditional execution instructions
⢠User-DSP mode and privileged-DSP mode
Clock pulse
⢠Clock mode: An input clock can be selected from the external input (EXTAL
generator (CPG)
or CKIO) or crystal resonator.
⢠Three types of clocks generated:
⯠CPU clock: 1â16 times the input clock
⯠Bus clock: 1â4 times the input clock
⯠Peripheral clock: 1/4â4 times the input clock
⢠Power-down modes:
⯠Sleep mode
⯠Standby mode
⯠Module standby mode (X/Y memory standby enabled)
⢠One-channel watchdog timer
Rev.6.00 Mar. 27, 2009 Page 3 of 1036
REJ09B0254-0600
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