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HC705C9AGRS/D 数据表(PDF) 39 Page - NXP Semiconductors |
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HC705C9AGRS/D 数据表(HTML) 39 Page - NXP Semiconductors |
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39 / 157 page ![]() General Release Specification I/O Registers MC68HC705C9A — Rev. 2.0 Memory ADDR REGISTER ACCESS BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 $0000 PORTA READ: PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 WRITE: $0001 PORTB READ: PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 WRITE: $0002 PORTC READ: PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 WRITE $0003 PORTD READ: PD7 PD5 PD4 PD3 PD2 PD1 PD0 WRITE: $0004 DDRA READ: DDRA7 DDRA6 DDRA5 DDRA4 DDRA3 DDRA2 DDRA1 DDRA0 WRITE: $0005 DDRB READ: DDRB7 DDRB6 DDRB5 DDRB4 DDRB3 DDRB2 DDRB1 DDRB0 WRITE: $0006 DDRC READ: DDRC7 DDRC6 DDRC5 DDRC4 DDRC3 DDRC2 DDRC1 DDRC0 WRITE: $0007 DDRD (C9A Only) READ: DDRD7 DDRD5 DDRD4 DDRD3 DDRD2 DDRD1 DDRD0 WRITE: $0008 UNUSED READ: WRITE: $0009 UNUSED READ: WRITE: $000A SPCR READ: SPIE SPE DWOM (C9A) MSTR CPOL CPHA SPR1 SPR0 WRITE: $000B SPSR READ: SPIF WCOL MODF WRITE: $000C SPDR READ: SPD7 SPD6 SPD5 SPD4 SPD3 SPD2 SPD1 SPD0 WRITE: $000D BAUD READ: SCP1 SCP0 SCR2 SCR1 SCR0 WRITE: $000E SCCR1 READ: R8 T8 M WAKE WRITE: $000F SCCR2 READ: TIE TCIE RIE ILIE TE RE RWU SBK WRITE: Figure 2-4. I/O Register Map Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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