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MSP430F14X Datasheet(PDF) 36 Page - Texas Instruments |
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MSP430F14X Datasheet(HTML) 36 Page - Texas Instruments |
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36 / 88 page  Time TMS goes low after POR TMS I TF I TDI/TCLK 36 MSP430F149, MSP430F148, MSP430F147 MSP430F1491, MSP430F1481, MSP430F1471 MSP430F135, MSP430F133 SLAS272H – JULY 2000 – REVISED MAY 2018 www.ti.com Submit Documentation Feedback Product Folder Links: MSP430F149 MSP430F148 MSP430F147 MSP430F1491 MSP430F1481 MSP430F1471 MSP430F135 MSP430F133 Detailed Description Copyright © 2000–2018, Texas Instruments Incorporated 6.6 JTAG Fuse Check Mode MSP430 MCUs that have the fuse on the TDI/TCLK terminal have a fuse check mode that tests the continuity of the fuse the first time the JTAG port is accessed after a power-on reset (POR). When activated, a fuse check current (ITF) of 1 mA at 3 V or 2.5 mA at 5 V can flow from the TDI/TCLK pin to ground if the fuse is not burned. Care must be taken to avoid accidentally activating the fuse check mode and increasing overall system power consumption. Activation of the fuse check mode occurs with the first negative edge on the TMS pin after power up or if the TMS is being held low during power up. The second positive edge on the TMS pin deactivates the fuse check mode. After deactivation, the fuse check mode remains inactive until another POR occurs. After each POR the fuse check mode has the potential to be activated. The fuse check current flows only when the fuse check mode is active and the TMS pin is in a low state (see Figure 6-2). Therefore, the additional current flow can be prevented by holding the TMS pin high (default condition). Figure 6-2. Fuse Check Mode Current 6.7 Memory Table 6-5 summarizes the memory map of all device variants. Table 6-5. Memory Organization MSP430F133 MSP430F135 MSP430F147 MSP430F1471 MSP430F148 MSP430F1481 MSP430F149 MSP430F149 Memory (flash) Size 8KB 16KB 32KB 48KB 60KB Main: interrupt vector Flash 0FFFFh to 0FFE0h 0FFFFh to 0FFE0h 0FFFFh to 0FFE0h 0FFFFh to 0FFE0h 0FFFFh to 0FFE0h Main: code memory Flash 0FFFFh to 0E000h 0FFFFh to 0C000h 0FFFFh to 08000h 0FFFFh to 04000h 0FFFFh to 01100h Information memory Size 256 bytes 256 bytes 256 bytes 256 bytes 256 bytes Flash 010FFh to 01000h 010FFh to 01000h 010FFh to 01000h 010FFh to 01000h 010FFh to 01000h Boot memory Size 1KB 1KB 1KB 1KB 1KB Flash 0FFFh to 0C00h 0FFFh to 0C00h 0FFFh to 0C00h 0FFFh to 0C00h 0FFFh to 0C00h RAM Size 256 bytes 512 bytes 1KB 2KB 2KB RAM 02FFh to 0200h 03FFh to 0200h 05FFh to 0200h 09FFh to 0200h 09FFh to 0200h Peripherals 16-bit 01FFh to 0100h 01FFh to 0100h 01FFh to 0100h 01FFh to 0100h 01FFh to 0100h 8-bit 0FFh to 010h 0FFh to 010h 0FFh to 010h 0FFh to 010h 0FFh to 010h 8-bit SFR 0Fh to 00h 0Fh to 00h 0Fh to 00h 0Fh to 00h 0Fh to 00h |
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