Pb14 Indicator Led Configuration; Figure 2-2 Rs-232 Serial Communication Options; Table 2-10 Serial Communication Configuration; Table 2-11 Pb14 Led Drive Selection - Motorola DSP56824ADM User Manual

Debug
Host
RS-232
Equipment

Figure 2-2 RS-232 Serial Communication Options

Table 2-10 Serial Communication Configuration

Configuration
DSP GPIO pins (default)
MCU serial port
Note: The DSP56824ADM is factory configured with the serial port connected to the
DSP.
2.6.8

PB14 Indicator LED Configuration

LED2 is provided as a simple tool for assisting with software debugging via the PB14
signal. Jumper group JG12 is used to set up LED2 as a status indicator. If JG12 is not
jumpered, PB14 functions as a GPIO pin with a 10 kΩ pull-up resistor. Jumpering JG12
1–2 connects PB14 to ground through LED2 and a 150 Ω current-limiting resistor. LED2
illuminates when the user software sets pin PB14 high. See Table 2-11.
Configuration
PB14 as indicator (default)
PB14 pull-up
MOTOROLA
JG7
3–5, 4–6 Available for use by DSP software
1–3, 2–4 Serial debug port for DSP56824ADM system

Table 2-11 PB14 LED Drive Selection

JG12
1–2
NC
DSP56824ADM User's Manual
DSP56824ADM Technical Summary
Jumper Configuration
DSP56824
DSP56824ADM
Comment
Comment
PB14 drives LED2
PB14 is GPIO pin
Command
Converter
AA1553
2-15