UPD75P0076CU datasheet(21/62 Pages) NEC

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UPD75P0076CU 数据表(PDF) 21 Page - NEC

部件名	UPD75P0076CU

功能描述	4-BIT SINGLE-CHIP MICROCONTROLLER

PDF	62 Pages

Scroll/Zoom	100%

制造商	NEC [NEC]

网页	http://www.nec.com/

标志

21 / 62 page

µPD75P0076

(4) Description of machine cycles

S indicates the number of machine cycles required for skipping of skip-specified instructions. The value of S varies as

shown below.

• No skip .......................................................................... S = 0

• Skipped instruction is 1-byte or 2-byte instruction ......... S = 1

• Skipped instruction is 3-byte instructionNote ................... S = 2

Note 3-byte instructions: BR !addr, BRA !addr1, CALL !addr, CALLA !addr1

Caution

The GETI instruction is skipped for one machine cycle.

One machine cycle equals one cycle (= tCY) of the CPU clock

Φ. Use the PCC setting to select among four cycle times.

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