Texas Instruments MSP430x4xx Family, Руководство пользователя

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Digital I/O Registers
11-7 Digital I/O
11.3 Digital I/O Registers
The digital I/O registers are listed in Table 11−1 and Table 11−2.
Table 11−1. Digital I/O Registers, P1-P6
Port Register Short Form Address Register Type Initial State
P1
Input
P1IN 020h Read only −
Output
P1OUT 021h Read/write Unchanged
Direction
P1DIR 022h Read/write Reset with PUC
Interrupt Flag
P1IFG 023h Read/write Reset with PUC
Interrupt Edge Select P1IES 024h Read/write Unchanged
Interrupt Enable P1IE 025h Read/write Reset with PUC
Port Select P1SEL 026h Read/write Reset with PUC
Resistor Enable P1REN 027h Read/write Reset with PUC
P2 Input P2IN 028h Read only −
Output P2OUT 029h Read/write Unchanged
Direction P2DIR 02Ah Read/write Reset with PUC
Interrupt Flag P2IFG 02Bh Read/write Reset with PUC
Interrupt Edge Select P2IES 02Ch Read/write Unchanged
Interrupt Enable P2IE 02Dh Read/write Reset with PUC
Port Select P2SEL 02Eh Read/write 0C0h with PUC
Resistor Enable P2REN 02Fh Read/write Reset with PUC
P3 Input P3IN 018h Read only −
Output P3OUT 019h Read/write Unchanged
Direction P3DIR 01Ah Read/write Reset with PUC
Port Select P3SEL 01Bh Read/write Reset with PUC
Resistor Enable P3REN 010h Read/write Reset with PUC
P4
Input
P4IN 01Ch Read only −
Output P4OUT 01Dh Read/write Unchanged
Direction P4DIR 01Eh Read/write Reset with PUC
Port Select P4SEL 01Fh Read/write Reset with PUC
Resistor Enable P4REN 011h Read/write Reset with PUC
P5 Input P5IN 030h Read only −
Output P5OUT 031h Read/write Unchanged
Direction P5DIR 032h Read/write Reset with PUC
Port Select P5SEL 033h Read/write Reset with PUC
Resistor Enable P5REN 012h Read/write Reset with PUC
P6 Input P6IN 034h Read only −
Output P6OUT 035h Read/write Unchanged
Direction P6DIR 036h Read/write Reset with PUC
Port Select P6SEL 037h Read/write Reset with PUC
Resistor Enable P6REN 013h Read/write Reset with PUC
Note: Resistor enable registers RxREN only available in MSP430x47x devices.