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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMS320VC5507 датащи(PDF) 33 Page - Texas Instruments |
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TMS320VC5507 датащи(HTML) 33 Page - Texas Instruments |
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33 / 108 page  16-Bit-Wide Asynchronous Memory BGA 5507 A[20:14] D[15:0] A[13:1] BE[1:0] 16-Bit Asynchronous Memory D[15:0] A[19:13] A[12:0] BGA 5507 A’[0] A[13:1] A[20:14] BE[1:0] 8-Bit-Wide Asynchronous Memory Memory Asynchronous 8-Bit A[0] A[13:1] A[20:14] BE[1:0] D[7:0] D[7:0] 16-Bit-Wide SDRAM SDWE A[12] D[15:0] A[10:1] SDA10 A[13] A[14] SDCAS SDRAS CLKMEM CEx WE A[11] A[9:0] D[15:0] A[10] BA[1] BA[0] DQM[H:L] CAS RAS CLK CS BE[1:0] BE[1:0] OE OE RE RE WE WE CEx CS OE OE RE RE WE WE CEx CS 15 8 7 6 5 4 3 2 1 0 Reserved IO7DIR IO6DIR IO5DIR IO4DIR IO3DIR IO2DIR IO1DIR IO0DIR LEGEND: R = Read, W = Write, n = value after reset R-00000000 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 SM320VC5507-EP www.ti.com SPRS613 – SEPTEMBER 2009 Figure 3-6. Parallel Port (EMIF) Signal Interface 3.7 General-Purpose Input/Output (GPIO) Ports 3.7.1 Dedicated General-Purpose I/O The 5507 provides eight dedicated general-purpose input/output pins, GPIO0 −GPIO7. Each pin can be indepedently configured as an input or an output using the I/O Direction Register (IODIR). The I/O Data Register (IODATA) is used to monitor the logic state of pins configured as inputs and control the logic state of pins configured as outputs. See Table 3-29 for address information. The description of the IODIR is shown in Figure 3-7 and Table 3-7. The description of IODATA is shown in Figure 3-8 and Table 3-8. To configure a GPIO pin as an input, clear the direction bit that corresponds to the pin in IODIR to 0. To read the logic state of the input pin, read the corresponding bit in IODATA. To configure a GPIO pin as an output, set the direction bit that corresponds to the pin in IODIR to 1. To control the logic state of the output pin, write to the corresponding bit in IODATA. Figure 3-7. I/O Direction Register (IODIR) Bit Layout Copyright © 2009, Texas Instruments Incorporated Functional Overview 33 Submit Documentation Feedback Product Folder Link(s): SM320VC5507-EP |
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