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參數(shù)資料
| 型號： | DS5000T-8-12 |
| 英文描述： | Soft Microcontroller |
| 中文描述： | 軟微控制器 |
| 文件頁數(shù)： | 6/19頁 |
| 文件大小： | 131K |
| 代理商： | DS5000T-8-12 |
DS5000(T)
021998 6/19
PROGRAM LOADING CONFIGURATIONS
Figure 3
PSEN
RST
D7–D0
A15–A12ADDRESS
A7–A0
A11–A8
PROGRAM
PROGRAM
V
CC
GND
DS5000
P1.7–
P2.3–
EA/V
PP
ALE/PROG
P2.7
P2.6
P2.5
XTAL1
XTAL2
P0.0
P3.4
PSEN
RST
V
CC
GND
DS5000
P1.7–
P2.5–
XTAL1
XTAL2
P0.0
P3.2
11.059 MHz
TXD
RXD
DRIVE/
RCV
RS232C
R<2K
PROGRAM
DATA IN/VERIFY
R<2K
PARALLEL
LOADING
SERIAL
LOADING
P2.6
P2.7
Table 1 summarizes the selection of the available Paral-
lel Program Load cycles. The timing associated with
these cycles is illustrated in the electrical specs.
SERIAL BOOTSTRAP LOADER
The Serial Program Load Mode is the easiest, fastest,
most reliable, and most complete method of initially
loading application software into the DS5000(T) nonvol-
atile RAM. Communication can be performed over a
standard asynchronous serial communications port. A
typical application would use a simple RS232C serial in-
terface to program the DS5000(T) as a final production
procedure. The hardware configuration which is re-
quired for the Serial Program Load mode is illustrated in
Figure 3. Port pins 2.7 and 2.6 must be either open or
pulled high to avoid placing the DS5000(T) in a parallel
load cycle. Although an 11.0592 MHz crystal is shown
in Figure 3, a variety of crystal frequencies and loader
baud rates are supported, shown in Table 2. The serial
loader is designed to operate across a three–wire inter-
face from a standard UART. The receive, transmit, and
ground wires are all that are necessary to establish
communication with the DS5000(T).
The Serial Bootstrap Loader implements an easy–to–
use command line interface which allows an application
program in an Intel hex representation to be loaded into
and read back from the device. Intel hex is the typical
format which existing 8051 cross–assemblers output.
The serial loader responds to single character com-
mands which are summarized below:
COMMAND
C
FUNCTION
Return CRC–16 checksum of em-
bedded RAM
Dump Intel Hex File
Fill embedded RAM block with
constant
Load 40–bit Encryption Key
Load Intel Hex File
Read MCON register
Trace (Echo) incoming Intel Hex
data
Clear Security Lock
Verify Embedded RAM with in-
coming Intel Hex
Write MCON register
Set Security Lock
Put a value to a port
Get a value from a port
D
F
K
L
R
T
U
V
W
Z
P
G
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| DS5000-32-12 | Soft Microcontroller |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS5000T-8-16 | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| DS5000T-8-8 | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| DS5000TK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller Evaluation Kit |
| DS5001FP | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:128k Soft Microprocessor Chip |
| DS5001FP_05 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:128k Soft Microprocessor Chip |
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