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TMS320VC5507 датащи(PDF) 46 Page - Texas Instruments |
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TMS320VC5507 датащи(HTML) 46 Page - Texas Instruments |
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46 / 142 page ![]() Functional Overview 46 April 2004 − Revised January 2008 SPRS244J 15 14 13 12 11 10 9 8 AIODIR15 (BGA) AIODIR14 (BGA) AIODIR13 AIODIR12 AIODIR11 AIODIR10 AIODIR9 AIODIR8 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 76 54 32 10 AIODIR7 AIODIR6 AIODIR5 AIODIR4 AIODIR3 AIODIR2 AIODIR1 AIODIR0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 LEGEND: R = Read, W = Write, n = value after reset Figure 3−11. Address/GPIO Direction Register (AGPIODIR) Bit Layout Table 3−10. Address/GPIO Direction Register (AGPIODIR) Bit Functions BIT NO. BIT NAME RESET VALUE FUNCTION 15−0 AIODIRx 0 Data direction bits that configure the Address Bus configured as I/O pins as either input or output pins. AIODIR15 and AIODIR14 are only available in BGA package. AIODIRx = 0 Configure corresponding pin as an input. AIODIRx = 1 Configure corresponding pin as an output. 15 14 13 12 11 10 9 8 AIOD15 (BGA) AIOD14 (BGA) AIOD13 AIOD12 AIOD11 AIOD10 AIOD9 AIOD8 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 76 54 32 10 AIOD7 AIOD6 AIOD5 AIOD4 AIOD3 AIOD2 AIOD1 AIOD0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 R/W, 0 LEGEND: R = Read, W = Write, n = value after reset Figure 3−12. Address/GPIO Data Register (AGPIODATA) Bit Layout Table 3−11. Address/GPIO Data Register (AGPIODATA) Bit Functions BIT NO. BIT NAME RESET VALUE FUNCTION 15−0 AIODx 0 Data bits that are used to control the level of the Address Bus configured as I/O output pins, and to monitor the level of the Address Bus configured as I/O input pins. AIOD15 and AIOD14 are only available in BGA package. If AIODIRn = 0, then: AIODx = 0 Corresponding I/O pin is read as a low. AIODx = 1 Corresponding I/O pin is read as a high. If AIODIRn = 1, then: AIODx = 0 Set corresponding I/O pin to low. AIODx = 1 Set corresponding I/O pin to high. |
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