參數(shù)資料
型號(hào)： NRF9E5-EVKIT868
廠商： Electronic Theatre Controls, Inc.
英文描述： 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
中文描述： 433/868/915MHz RF收發(fā)器與8051兼容的嵌入式微控制器和4輸入，10位ADC
文件頁(yè)數(shù)： 61/104頁(yè)
文件大小： 1436K
代理商： NRF9E5-EVKIT868
PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989
Revision: 1.1
Page 61 of 104
June 2004
addressing accesses the SFRs, while indirect addressing accesses the upper 128 bytes of
RAM. Most SFRs are reserved for specific functions, as described in 18.6 Special
Function Registers on page 69. SFR addresses ending in 0h or 8h are bit-addressable.
18.2
Program Format in External EEPROM
The table below shows the layout of the first few bytes of the EEPROM image.
7
6
5
4
3
2
1
0
0:
Version
(now 00)
Offset to start of user program (N)
Number of 256 byte blocks in user program (includes block 0 that is not full)
Optional User data, not interpreted by boot loader
…
First byte of user program, goes into ERAM at 0x0000
Second byte of user program, goes into ERAM at 0x0001
…
Reserved
(now 00)
SPEED
XO_FREQ
1:
2:
…
…
N:
N+1:
Table 53 EEPROM layout.
The contents of the 4 lowest bits in the first byte is used by the boot loader to set the
correct SPI frequency. These fields are encoded as shown below:
SPEED (bit 3): EEPROM max speed
0 = 1MHz
1 = 0.5MHz
XO_FREQ (bits 2,1 and 0): Crystal oscillator frequency
000 = 4MHz,
001 = 8MHz,
010 = 12MHz,
011 = 16MHz,
100 = 20MHz
The program eeprep
1
can be used to add this header to a program file.
Command format: eeprep [options] <infile> <outfile>
<infile> is the output file of an assembler or compiler
<outfile> is a file suitable for programming the EEPROM (above format with no user
data).
Both files are “Intelhex” format.
The options available for eeprep are:
-c n
Set crystal frequency in MHz.
-i
Ignore checksums
-p n
Set program memory size (default 4096 bytes)
-s
Select slow EEPROM clock (500KHz)
1
Available on www.nordicsemi.no
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NRF9E5-EVKIT915 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
NRF9E5IC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
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