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DLPC8455AMD Datasheet(PDF) 4 Page - Texas Instruments |
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DLPC8455AMD Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 73 page  Table 4-1. Initialization, Board Level Test, and Debug (continued) PIN I/O (1) DESCRIPTION NAME NO. JTAGTRSTZ AA25 I2 JTAG, ARM-ICE Reset. For normal operation, this pin must be pulled to ground through an external resistor with a value 8kΩ or less. Failure to pull this pin low during normal operation causes start-up and initialization problems. For JTAG Boundary Scan and ARM-ICE Debug operation, this pin must be pulled up or left disconnected. Includes a weak internal pullup and hysteresis JTAGTDI Y24 I2 JTAG, ARM-ICE, and CPU MBIST: Serial Data In. Includes a weak internal pullup JTAGTDO1 V22 B14 JTAG Serial Data Out JTAGTDO2 W23 B14 ARM-ICE Serial Data Out. For normal operation, this pin requires an external pullup resistor with a value of ≤ 9.15kΩ. ETM_TRACECLK U25 O14 Reserved Pin, must be left unconnected. ETM_TRACECTL T24 O14 Reserved Pin, must be left unconnected. TSTPT_0 T22 B14 Test pin 0 This pin has an internal pulldown and may require an external pullup resistor (no pullup: Normal Boot, pullup: Wait for Host commands) with a value of ≤ 9.15kΩ. TSTPT_1 R25 B14 Test pin 1 This pin has an internal pulldown for Normal Boot operation. TSTPT_2 R23 B14 Test pin 2 This pin has an internal pulldown and may require an external pullup resistor (no pullup: I2C address = 0x36, pullup: I2C address = 0x34) with a value of ≤ 9.15kΩ. TSTPT_3 P24 B14 Test pin 3 This pin has an internal pulldown and may require an external pullup resistor (no pullup: Host interface is USB or I2C, pullup: Host interface is I2C only) with a value of ≤ 9.15kΩ. TSTPT_4 N25 B14 Test pin 4 This pin has an internal pulldown resistor. TSTPT_5 P22 B14 Test pin 5 This pin has an internal pulldown resistor. TSTPT_6 N23 B14 Test pin 6 This pin has an internal pulldown resistor. TSTPT_7 M24 B14 Test pin 7 This pin has an internal pulldown resistor. GPTP0 AA23 B13 General Purpose Test pin 0 This pin has an internal pulldown and may require an external pullup resistor (no pullup: external crystal, pullup: external clock) with a value of ≤ 9.15kΩ. GPTP1 AB22 B13 General Purpose Test pin 1 This pin has an internal pulldown resistor. GPTP2 AC25 B13 General Purpose Test pin 2 This pin has an internal pulldown resistor. ATB_0_H AH4 PWR Reserved Pin, must be left unconnected. ATB_1_H AJ5 PWR Reserved Pin, must be left unconnected. ATEST G13 PWR Reserved Pin, must be left unconnected. CAP_VDDS_FLSH AD22 PWR External bias capacitance CAP_VDDS_INTF AJ21 PWR External bias capacitance IFORCE L3 PWR Manufacturing use only. Must be tied to ground. VSENSE K2 PWR Reserved Pin, must be left unconnected. HWTEST_EN Y22 I2 Reserved Pin. This signal must be connected directly to ground on the PCB for normal operation. Includes weak internal pulldown and hysteresis. (1) See Section 4.12 for more information on I/O definitions DLPC8445, DLPC8445V, DLPC8455 DLPS253B – SEPTEMBER 2024 – REVISED AUGUST 2025 www.ti.com 4 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated Product Folder Links: DLPC8445 DLPC8445V DLPC8455 |
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