dsp56001 Freescale Semiconductor, Inc, dsp56001 Datasheet - Page 49

• Manufacturer Part Number: dsp56001
• Description: Available In An 88 Pin Ceramic Through-hole Package.
• Manufacturer: Freescale Semiconductor, Inc

FROM OPEN
COLLECTOR
BUFFER
FROM OPEN
COLLECTOR
BUFFER
FROM OPEN
COLLECTOR
BUFFER
FROM OPEN
COLLECTOR
BUFFER
FROM
RESET
FUNCTION
FROM
RESET
FUNCTION
DSP56001
Figure B-3 shows the DSP56001 bootstrapping via the Host Port
from an MC68000.
Systems with external program memory can load the on-chip
PRAM without using the bootstrap mode. In Figure B-4, the
15K
15K
+5 V
+5 V
15K
15K
Figure B-4. 32K Words of External Program ROM — Mode 2
15K
15K
MBD301
15K
MBD301
MBD301
MBD301
15K
*
*
*
*
15K
Figure B-3. DSP56001 Host Bootstrap Example — Mode 1
BR
HACK
MODA/IRQA
MODB/IRQB
D23
MODA/IRQA
MODB/IRQB
RESET
RESET
DSP56001
DSP56001
HA0-HA2
D0-D23
A0-A14
H0-H7
HR/W
HACK
HEN
DSP56001 is operated in mode 2 with external program memory
at location $E000. The programmer can overlay the high speed
on-chip PRAM with DSP algorithms by using the MOVEM in-
struction.
RD
PS
BR
+5V
+5V
Note *: These diodes must be Schottky diodes.
15
15
F32
F32
F32
LS09
15
Note *: These diodes must be Schottky diodes.
8
3
24
F32
ADDRESS
DECODE
A0-A14
+5 V
2756-30 (3)
MOTOROLA
D0-D23
1K
DTACK
LDS
A4-A23
AS
R/W
D0-D7
A1-A3
MC68000
CS
B-49
(12.5MHz)
OE