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AM3517 Datasheet(PDF) 11 Page - Texas Instruments |
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AM3517 Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 184 page  2.2 Ball Characteristics AM3517/05 ARM Microprocessor www.ti.com SPRS550 – OCTOBER 2009 Table 2-1 describes the terminal characteristics and the signals multiplexed on each pin for the ZCN package. The following list describes the table column headers. 1. BALL LOCATION: Ball number(s) on the bottom side associated with each signal(s) on the bottom. 2. PIN NAME: Names of signals multiplexed on each ball (also notice that the name of the pin is the signal name in mode 0). Note: Table 2-1 does not take into account subsystem pin multiplexing options. Subsystem pin multiplexing options are described in Section 2.4, Signal Descriptions. 3. MODE: Multiplexing mode number. a. Mode 0 is the primary mode; this means that when mode 0 is set, the function mapped on the pin corresponds to the name of the pin. There is always a function mapped on the primary mode. Notice that primary mode is not necessarily the default mode. Note: The default mode is the mode which is automatically configured on release of the internal GLOBAL_PWRON reset; also see the RESET REL. MODE column. b. Modes 1 to 7 are possible modes for alternate functions. On each pin, some modes are effectively used for alternate functions, while some modes are not used and do not correspond to a functional configuration. 4. TYPE: Signal direction – I = Input – O = Output – I/O = Input/Output – D = Open drain – DS = Differential – A = Analog Note: In the safe_mode, the buffer is configured in high-impedance. 5. BALL RESET STATE: The state of the terminal at reset (power up). – 0: The buffer drives VOL (pulldown/pullup resistor not activated) 0(PD): The buffer drives VOL with an active pulldown resistor. – 1: The buffer drives VOH (pulldown/pullup resistor not activated) 1(PU): The buffer drives VOH with an active pullup resistor. – Z: High-impedance – L: High-impedance with an active pulldown resistor – H : High-impedance with an active pullup resistor 6. BALL RESET REL. STATE: The state of the terminal at reset release. – 0: The buffer drives VOL (pulldown/pullup resistor not activated) 0(PD): The buffer drives VOL with an active pulldown resistor. – 1: The buffer drives VOH (pulldown/pullup resistor not activated) 1(PU): The buffer drives VOH with an active pullup resistor. – Z: High-impedance – L: High-impedance with an active pulldown resistor – H : High-impedance with an active pullup resistor 7. RESET REL. MODE: This mode is automatically configured on release of the internal GLOBAL_PWRON reset. 8. POWER: The voltage supply that powers the terminal’s I/O buffers. 9. VOLTAGE: Supply voltage for associated pin. 10. HYS: Indicates if the input buffer is with hysteresis. 11. LOAD: Load capacitance of the associated output buffer. 12. PULL U/D - TYPE: Denotes the presence of an internal pullup or pulldown resistor. Pullup and pulldown resistors can be enabled or disabled via software. Submit Documentation Feedback TERMINAL DESCRIPTION 11 |
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