參數(shù)資料
型號(hào)： DS80C411-FNY+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 49/102頁(yè)
文件大?。?/td> 0K
描述： IC MCU 75MHZ 16MB HP 100-LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 90
系列： 80C
核心處理器： 8051
芯體尺寸： 8-位
速度： 75MHz
連通性： 1 線，CAN，EBI/EMI，以太網(wǎng)，SIO，UART/USART
外圍設(shè)備： 電源故障復(fù)位，WDT
輸入/輸出數(shù)： 64
程序存儲(chǔ)器容量： 64KB（64K x 8）
程序存儲(chǔ)器類型： ROM
RAM 容量： 64K x 8
電壓 - 電源 (Vcc/Vdd)： 1.62 V ~ 3.6 V
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 100-LQFP
包裝： 托盤
DS80C410/DS80C411 Network Microcontrollers with Ethernet and CAN
50 of 102
Table 9. Data Memory Cycle Stretch Values
MD2
MD1
MD0
STRETCH
VALUE
MOVX
MACHINE
CYCLES
APPROXIMATE RD, WR PULSE WIDTH
(IN OSCILLATOR CLOCKS)
(4X/2X = 1
CD1:0 = 00)
(4X/2X = 0
CD1:0 = 00)
(4X/2X = X
CD1:0 = 10)
(4X/2X = X
CD1:0 = 11)
0
0 (Note 1)
2
0.5 tCLK
1 tCLK
2 tCLK
512 tCLK
0
1
1 (Note 2)
3
1 tCLK
2 tCLK
4 tCLK
1024 tCLK
0
1
0
2
4
2 tCLK
4 tCLK
8 tCLK
2048 tCLK
0
1
3
5
3 tCLK
6 tCLK
12 tCLK
3072 tCLK
1
0
4
9
4 tCLK
8 tCLK
16 tCLK
4096 tCLK
1
0
1
5
10
5 tCLK
10 tCLK
20 tCLK
5120 tCLK
1
0
6
11
6 tCLK
12 tCLK
24 tCLK
6144 tCLK
1
7
12
7 tCLK
14 tCLK
28 tCLK
7168 tCLK
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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