| 전자부품 데이터시트 검색엔진 |
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HC05RC17GRS/D 데이터시트(PDF) 59 Page - NXP Semiconductors |
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HC05RC17GRS/D 데이터시트(HTML) 59 Page - NXP Semiconductors |
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59 / 128 page ![]() MC68HC05RC17 — Rev. 2.0 General Release Specification Parallel Input/Output (I/O) General Release Specification — MC68HC05RC17 Section 7. Parallel Input/Output (I/O) 7.1 Contents 7.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59 7.3 Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 7.4 Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 7.5 Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 7.6 Input/Output (I/O) Programming . . . . . . . . . . . . . . . . . . . . . . . .61 7.2 Introduction In user mode, 18 lines are arranged as one 2-bit and two 8-bit I/O ports. These ports are programmable as either inputs or outputs under software control of the data direction registers. NOTE: To avoid a glitch on the output pins, write data to the I/O port data register before writing a 1 to the corresponding data direction register. Four extra I/O ports are available on higher pin count packages. Consult factory for availability. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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