sak-c164ci-l16m3v Infineon Technologies Corporation, sak-c164ci-l16m3v Datasheet - Page 18

• Manufacturer Part Number: sak-c164ci-l16m3v
• Description: 16-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

C164CI-L16M3V
Low Power
Preliminary
Central Processing Unit (CPU)
The main core of the CPU consists of a 4-stage instruction pipeline, a 16-bit arithmetic
and logic unit (ALU) and dedicated SFRs. Additional hardware has been spent for a
separate multiply and divide unit, a bit-mask generator and a barrel shifter.
Based on these hardware provisions, most of the C164CI-3V’s instructions can be
executed in just one machine cycle which requires 2 CPU clocks (4 TCL). For example,
shift and rotate instructions are always processed during one machine cycle
independent of the number of bits to be shifted. All multiple-cycle instructions have been
optimized so that they can be executed very fast as well: branches in 2 cycles, a 16 16
bit multiplication in 5 cycles and a 32-/16-bit division in 10 cycles. Another pipeline
optimization, the so-called ‘Jump Cache’, reduces the execution time of repeatedly
performed jumps in a loop from 2 cycles to 1 cycle.
Figure 4
CPU Block Diagram
Data Sheet
14
V1.0, 2003-01