cp3cn23 National Semiconductor Corporation, cp3cn23 Datasheet - Page 24
![no-image](/images/no-image-200.jpg)
cp3cn23
Manufacturer Part Number
cp3cn23
Description
Cp3cn23 Reprogrammable Connectivity Processor With Dual Can Interfaces
Manufacturer
National Semiconductor Corporation
Datasheet
1.CP3CN23.pdf
(246 pages)
- Current page: 24 of 246
- Download datasheet (3Mb)
www.national.com
6.0
The CP3CN23 supports a uniform 16M-byte linear address
space. Table 6 lists the types of memory and peripherals
that occupy this memory space. Unlisted address ranges
6.1
The operating environment controls whether external mem-
ory is supported and whether the reset vector jumps to a
code space intended to support In-System Programming
(ISP). Up to 12M of external memory space is available.
The operating mode of the device is controlled by the states
on the ENV[2:0] pins at reset and the states of the EMPTY
bits in the Protection Word, as shown in Table 7. Internal
pullups on the ENV[2:0] pins select IRE mode or ISP mode
if these pins are allowed to float.
When ENV[2:0] = 111b, IRE mode is selected unless the
EMPTY bits in the Protection word indicate that the program
flash memory is empty (unprogrammed), in which case ISP
mode is selected. When ENV[2:0] = 011b, ERE mode is se-
lected unless the EMPTY bits indicate that the program
flash memory is empty, in which case ISP mode is selected.
When ENV[2:0] = 110b, ISP mode is selected without re-
gard to the states of the EMPTY bits. See Section 8.4.2 for
more details.
FF FB00h
FF FC00h
0D 0000h
0D 2000h
0E 0000h
0E 8000h
0E F000h
0E F140h
0E F200h
0E F320h
FF 0000h
FF F200h
FF F600h
00 0000h
04 0000h
10 0000h
40 0000h
80 0000h
Address
Start
Memory
OPERATING ENVIRONMENT
0C FFFFh
0D FFFFh
0E EFFFh
FE FFFFh
FF FBFFh
0D 1FFFh
0E 7FFFh
0E F1FFh
0F FFFFh
3F FFFFh
7F FFFFh
FF F1FFh
FF F5FFh
FF FAFFh
FF FFFFh
03 FFFFh
0E F13Fh
0E F33Fh
Address
End
Size in
3072K
4096K
8128K
Bytes
61952
256K
576K
1280
56K
32K
28K
67K
320
192
320
256
8K
1K
1K
Table 6 CP3CN23 Memory Map
On-chip Flash Program Memory, including Boot
Memory
Reserved
On-chip Flash Data Memory
Reserved
System RAM
Reserved
CAN0 Buffers and Registers
Reserved
CAN1 Buffers and Registers
Reserved
Reserved
External Memory Zone 1
External Memory Zone 2
Reserved
Peripherals and Other I/O Ports
BIU, DMA, Flash interfaces
I/O Expansion
Peripherals and Other I/O Ports
24
are reserved and must not be read or written. The BIU
zones are regions of the address space that share the same
control bits in the Bus Interface Unit (BIU).
In the DEV environment, the on-chip flash memory is dis-
abled, and the corresponding region of the address space
is mapped to external memory. DEVINT mode is equivalent
to DEV mode but maps static memory zone 0 to the on-chip
memory.
Description
Static Zone 0
(mapped internally
in IRE and ERE
mode; mapped to
the external bus in
DEV mode)
N/A
Static Zone 1
Static Zone 2
N/A
I/O Zone
N/A
IN/A
BIU Zone
Related parts for cp3cn23
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![mma1270keg](/images/no-image3.png)
Part Number:
Description:
Freescale Semiconductor Technical Data
Manufacturer:
National Semiconductor Corporation
Datasheet:
![ADC12034](/images/no-image3.png)
Part Number:
Description:
Self-calibrating 12-bit Plus Sign Serial I/o A/d Converters With Mux And Sample/hold
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2350](/images/no-image3.png)
Part Number:
Description:
Pllatinum Tm Fractional N Rf / Integer N If Dual Low Power Frequency Synthesizer
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2324](/images/no-image3.png)
Part Number:
Description:
Pllatinum? 2.0 Ghz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LMX2301](/images/no-image3.png)
Part Number:
Description:
Pllatinumtm 160 Mhz Frequency Synthesizer For Rf Personal Communications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![NDS8963](/images/no-image3.png)
Part Number:
Description:
Dual N-channel Enhancement Mode Field Effect Transistor
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM1201](/images/no-image3.png)
Part Number:
Description:
Video Amplifier System (obsolete)
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM3501TL-16](/images/no-image3.png)
Part Number:
Description:
Synchronous Step-up DC/DC Converter For White Led Applications
Manufacturer:
National Semiconductor Corporation
Datasheet:
![AD9621](/images/no-image3.png)
Part Number:
Description:
CLC420 - High Speed, Voltage Feedback op Amp, Package: Lcc, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM2403](/images/no-image3.png)
Part Number:
Description:
Monolithic Triple 4.5 CRT Driver
Manufacturer:
National Semiconductor Corporation
Datasheet:
![LM592M](/images/no-image3.png)
Part Number:
Description:
Differential Video Amplifier
Manufacturer:
National Semiconductor Corporation
Datasheet:
![ADC10061](/images/no-image3.png)
Part Number:
Description:
ADC10061 - 10-Bit 600 NS A/D Converter With Input Multiplexer And Sample/Hold, Package: Soic Wide, Pin Nb=20
Manufacturer:
National Semiconductor Corporation
Datasheet:
![DS36277TMX](/images/no-image3.png)
Part Number:
Description:
DS36277 - Dominant Mode Multipoint Transceiver, Package: Soic Narrow, Pin Nb=8
Manufacturer:
National Semiconductor Corporation
Datasheet:
![DS3654](/images/no-image3.png)
Part Number:
Description:
Printer Solenoid Driver
Manufacturer:
National Semiconductor Corporation
Datasheet:
![DS3662](/images/no-image3.png)
Part Number:
Description:
Quad High Speed Trapezoidal Bus Transceiver
Manufacturer:
National Semiconductor Corporation
Datasheet: