mc56f8006 Freescale Semiconductor, Inc, mc56f8006 Datasheet - Page 29

• Manufacturer Part Number: mc56f8006
• Description: Digital Signal Controller
• Manufacturer: Freescale Semiconductor, Inc

5.3
The 56F8006/56F8002 series contain a dual access memory. It can be accessed from core primary data buses (XAB1; CDBW;
CDBR) and secondary data buses (XAB2; XDB2). Addresses in data memory are selected on the XAB1 and XAB2 buses. Byte,
word, and long data transfers occur on the 32-bit CDBR and CDBW buses. A second 16-bit read operation can be performed
in parallel on the XDB2 bus.
Peripheral registers and on-chip JTAG/EOnCE controller registers are memory-mapped into data memory access. A special
direct address mode is supported for accessing a first 64-location in data memory by using a single word instruction.
The data memory map is shown in
Freescale Semiconductor
1
2
All addresses are 16-bit word addresses.
This RAM is shared with data space starting at address X: 0x00 0000; see
Data Map
Begin/End Address
P: 0x1F FFFF
P: 0x00 83FF
P: 0x00 7FFF
P: 0x00 1FFF
P: 0x00 07FF
P: 0x00 8800
P: 0x00 8000
P: 0x00 2000
P: 0x00 0800
P: 0x00 0000
1
2
All addresses are 16-bit word addresses.
This RAM is shared with Program space starting at P: 0x00 8000. See
Figure
Table 8. Program Memory Map
Begin/End Address
8.
X:0xFF FFFF
X:0xFF FEFF
X:0xFF FF00
X:0x00 FFFF
X:0x00 EFFF
X:0x00 87FF
X:0x00 7FFF
X:0x00 03FF
X:0x01 0000
X:0x00 F000
X:0x00 8800
X:0x00 8000
X:0x00 0400
X:0x00 0000
MC56F8006/MC56F8002 Digital Signal Controller, Rev. 2
Table
RESERVED
On-Chip RAM
RESERVED
RESERVED
• Internal program flash: 12 KB
• Interrupt vector table locates from 0x00 0800 to 0x00 0865
• COP reset address = 0x00 0802
• Boot location = 0x00 0800
9.
Table 9. Data Memory Map
2
: 2 KB
1
for 56F8002 at Reset (continued)
Memory Allocation
4096 locations allocated
256 locations allocated
Memory Allocation
On-Chip Peripherals
On-Chip Data RAM
RESERVED
RESERVED
RESERVED
RESERVED
EOnCE
1
2 KB
2
Figure
Figure 7
8.
and
Memory Maps
29