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| 型號： | DS80C411-FNY |
| 英文描述： | Network Microcontrollers with Ethernet and CAN |
| 中文描述： | 網(wǎng)絡微控制器與以太網(wǎng)和CAN |
| 文件頁數(shù)： | 50/102頁 |
| 文件大?。?/td> | 2637K |
| 代理商： | DS80C411-FNY |
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DS80C410/DS80C411 Network Microcontrollers with Ethernet and CAN
Table 9. Data Memory Cycle Stretch Values
50 of 102
APPROXIMATE
(IN OSCILLATOR CLOCKS)
(4X/
2X
= 1
CD1:0 = 00)
CD1:0 = 00)
0.5 t
CLK
1 t
CLK
1 t
CLK
2 t
CLK
2 t
CLK
4 t
CLK
3 t
CLK
6 t
CLK
4 t
CLK
8 t
CLK
5 t
CLK
10 t
CLK
6 t
CLK
12 t
CLK
7 t
CLK
14 t
CLK
RD
,
WR
PULSE WIDTH
MD2
MD1
MD0
STRETCH
VALUE
MOVX
MACHINE
CYCLES
(4X/
2X
= 0
(4X/
2X
= X
CD1:0 = 10)
2 t
CLK
4 t
CLK
8 t
CLK
12 t
CLK
16 t
CLK
20 t
CLK
24 t
CLK
28 t
CLK
(4X/
2X
= X
CD1:0 = 11)
512 t
CLK
1024 t
CLK
2048 t
CLK
3072 t
CLK
4096 t
CLK
5120 t
CLK
6144 t
CLK
7168 t
CLK
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0 (Note 1)
1 (Note 2)
2
3
4
5
6
7
2
3
4
5
9
10
11
12
Note 1:
All internal MOVX operations execute at the 0 stretch setting.
Note 2:
Default stretch setting for external MOVX operations following reset, prior to execution of internal ROM.
Internal MOVX SRAM
The DS80C410/411 incorporates 73.25kBytes on-chip SRAM for MOVX memory. The on-chip SRAM is physically
divided into four memory blocks: a dedicated 64Kx8 data or program/data memory, a 1Kx8 memory block for
extended stack or data memory, and 256 bytes of dual port RAM for control and storage of CAN messages. The
address locations of these four blocks are fixed and cannot be altered.
Figure 2
shows the default memory
configuration of the DS80C410.
Figure 2. Internal Data Memory
The 8kB (2kx32) block is used by the Ethernet MAC as frame-buffer memory for incoming or outgoing packet data
and can, at the same time, be accessed by the DS80C410 as MOVX data memory. While the MAC is in use,
special care should be taken by user software to prevent undesirable MOVX writes from corrupting frame-buffer
memory. Note: that when the SA bit (ACON.2) is set, 1kB of the MOVX data memory is accessed by the 10-bit
2Kx32 SRAM
(DATA MEMORY OR
NETWORK BUFFER
MEMORY)
1Kx8 SRAM
(DATA MEMORY OR
OPTIONAL STACK)
256x8 DPSRAM
(CAN DATA MEMORY)
64Kx8 SRAM
(DATA MEMORY)
INTERNAL DATA MEMORY
FFFFFF
FFDC00
FFDBFF
FFDB00
00FFFF
000000
FFE000
FFDFFF
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS80C411-FNY+ | 功能描述:8位微控制器 -MCU Network MCU w/Ethernet & CAN 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 |
| DS80CH11 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:System Energy Manager |
| DS80CH11+E02 | 制造商:Maxim from Components Direct 功能描述:MAXIM DS80CH11+E02 SYSTEM ENERGY MANAGERS - Trays 制造商:Maxim 功能描述:Maxim DS80CH11+E02 System Energy Managers |
| DS80CH11-E02 | 制造商:Maxim from Components Direct 功能描述:MAXIM DS80CH11-E02 SYSTEM ENERGY MANAGERS - Trays 制造商:Maxim 功能描述:Maxim DS80CH11-E02 System Energy Managers |
| DS80E100 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:5 to 12.5 Gbps, Power-Saver Equalizer for Backplanes and Cables |
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