Program Memory Configuration; Table 2-3 Operating Mode Selection - Motorola DSP56824ADM User Manual

Operating Mode 0 or 2. Table 2-3 shows the JG2 selection to achieve any of the four
operating modes available on the DSP56824.
Operating Mode
0
1
2
3
Note: The DSP56824ADM is factory configured to exit from reset in Mode 2.
2.6.4

Program Memory Configuration

Jumper group JG3 selects the external program static RAM memory configuration. For
fastest operation with the installed 10 ns FSRAM, jumper pins JG3 1–2 and 3–4, and
configure the Bus Control Register (BCR) for zero wait states. Program memory will then
occupy address range P:$0–$FFFF.
If the NVSRAM is used, jumper pins JG3 5–6 and JG13 1–2. The program Static RAM
occupies address range P:$0–$7FFF, and the NVSRAM occupies address range
P:$8000–$FFFF. The delay from gating address line A15 with PS requires that the BCR
must be configured for at least one wait state while executing out of external program
memory. The NVSRAM offers a means of executing programs and loading memory as
required from its non-volatile memory after exiting reset. See Table 2-4 for JG3 and JG13
program memory configuration.
MOTOROLA

Table 2-3 Operating Mode Selection

JG2
1–2, 3–4 Bootstrap from byte-wide EPROM
3–4 Bootstrap from SPI0 or SSI Port
1–2 Normal Expanded P:$E000 (default)
No jumpers Development P:$0000
DSP56824ADM User's Manual
DSP56824ADM Technical Summary
Jumper Configuration
Comment
2-9