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HC705JJ7GRS/D Datasheet(PDF) 77 Page - NXP Semiconductors

Part # HC705JJ7GRS/D
Description  Low-Cost, HC05 Core MCU in 20-Pin Package (MC68HC705JJ7) or 28-Pin Package (MC68HC705JP7)
PDF  230 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

HC705JJ7GRS/D Datasheet(HTML) 77 Page - NXP Semiconductors

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MC68HC705JJ7/MC68HC705JP7 — Rev. 3.0
General Release Specification
Parallel Input/Output
General Release Specification — MC68HC705JJ7/MC68HC705JP7
Section 7. Parallel Input/Output
7.1 Contents
7.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
7.3
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
7.3.1
Port A Data Register (PORTA) . . . . . . . . . . . . . . . . . . . . . .79
7.3.2
Data Direction Register A (DDRA) . . . . . . . . . . . . . . . . . . .80
7.3.3
Pulldown Register A (PDRA). . . . . . . . . . . . . . . . . . . . . . . .81
7.3.4
Port A External Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . .82
7.3.5
Port A Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
7.4
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
7.4.1
Port B Data Register (PORTB) . . . . . . . . . . . . . . . . . . . . . .84
7.4.2
Data Direction Register B (DDRB) . . . . . . . . . . . . . . . . . . .85
7.4.3
Pulldown Register B (PDRB). . . . . . . . . . . . . . . . . . . . . . . .86
7.4.4
Port B Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
7.4.5
PB0, PBI, PB2 and PB3 Logic. . . . . . . . . . . . . . . . . . . . . . .87
7.4.6
PB4/AN4/TCMP/CMP1 Logic . . . . . . . . . . . . . . . . . . . . . . .89
7.4.7
PB5/SDO Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
7.4.8
PB6/SDI Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
7.4.9
PB7/SCK Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
7.5
Port C (28-Pin Versions Only) . . . . . . . . . . . . . . . . . . . . . . . . .99
7.5.1
Port C Data Register (PORTC) . . . . . . . . . . . . . . . . . . . . . .99
7.5.2
Data Direction Register C (DDRC) . . . . . . . . . . . . . . . . . .100
7.5.3
Port C Pulldown Devices. . . . . . . . . . . . . . . . . . . . . . . . . .100
7.5.4
Port C Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
7.6
Port Transitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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