Motorola 24-Bit Digital Signal Processor, DSP56000 - page 214

USING THE OnCE
10- 22 ON-CHIP EMULATION (OnCE) MOTOROLA
f. CLK
g. Send command READ FIFO REGISTER and increment counter (10010001)
h. ACK
i. CLK
j. Send command READ FIFO REGISTER and increment counter (10010001)
k. ACK
l. CLK
m. Send command READ FIFO REGISTER and increment counter (10010001)
n. ACK
o. CLK
p. Send command READ FIFO REGISTER and increment counter (10010001)
q. ACK
r. CLK
s. Send command READ FIFO REGISTER and increment counter (10010001)
t. ACK
u. CLK
10.11.2 Displaying A Specified Register
1. Send command WRITE PDB REGISTER, GO, no EX (01001001). The OnCE con-
troller selects PDB as destination for serial data.
2. ACK
3. Send the 24-bit DSP56K opcode: “MOVE reg,x:OGDB”
After 24 bits have been received, the PDB register drives the PDB. The OnCE con-
troller releases the chip from the debug mode, the chip executes the MOVE
instruction, and the contents of the register specified in the instruction are loaded in
the GDB REGISTER. The signal that marks the end of the instruction returns the
chip to the debug mode.
4. ACK
5. Send command READ GDB REGISTER (10001000)