Epson CMOS 32-Bit Single Chip Microcomputer S1C33L03 Bedienungsanleitung Seite 67

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6 FUNCTIONS
S1C33 FAMILY C33 PE CORE MANUAL
EPSON
59
6.6 Coprocessor Interface
The C33 PE Core incorporates a coprocessor interface. This interface has dedicated coprocessor instructions
available for use, allowing various data processors such as an FPU or DSP to be connected to the chip, and is
configured as a simple interface (consisting of only a 16-bit instruction bus and 32-bit input and output data buses).
Dedicated coprocessor instructions
ld.c %rd,imm4 Transfer data from the coprocessor
ld.c imm4,%rs Transfer data to the coprocessor
do.c imm6 Execute the coprocessor
ld.cf Transfer C, V, Z, and N flags from the coprocessor
The concrete commands and status of the coprocessor vary with each coprocessor connected to the chip. Please
refer to the users manual for the coprocessor used.
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