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參數(shù)資料
| 型號： | DS80C411-FNY+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 98/102頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 75MHZ 16MB HP 100-LQFP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 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 |
| 程序存儲器容量： | 64KB（64K x 8） |
| 程序存儲器類型： | 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 |
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DS80C410/DS80C411 Network Microcontrollers with Ethernet and CAN
95 of 102
Table 25 demonstrates that, for a 40MHz crystal frequency, the watchdog timer is capable of producing timeout
periods from 3.28ms (217 x 1/40MHz) to greater than one and a half seconds (1.68 = 226 x 1/40MHz) with the
default setting of CD1:0 (= 10). This wide variation in timeout periods allows very flexible system implementation.
In a typical initialization, the user selects one of the possible counter values to determine the timeout. Once the
counter chain has completed a full count, hardware sets the interrupt flag (WDIF = WDCON.3). Regardless of
whether the software makes use of this flag, there are then 512 system clocks left until the reset flag (WTRF =
WDCON.2) is set. Software can enable (1) or disable (0) the reset using the enable watchdog timer reset (EWT =
WDCON.1) bit.
Table 25. Watchdog Timeout Values
4X/2X CD1:0
WATCHDOG INTERRUPT TIMEOUT
WD1:0 = 00
WD1:0 = 01
WD1:0 = 10
WD1:0 = 11
1
00
215
218
221
224
0
00
216
219
222
225
x
01
217
220
223
226
x
10
217
220
223
226
x
11
225
228
231
234
IrDA Clock
The DS80C410 has the ability to generate an output clock (CLKO) as a secondary function on port pin P3.5.
Setting both the IrDA clock-output enable bit (IRDACK:COR.7) and external clock-output enable bit
(XCLKOE:COR.1) to a logic 1 produces an output clock of 16 times the programmed baud rate for serial port 0.
This 16X output clock used in conjunction with serial port 0 I/O (TXD0, RXD0) conveniently allows for direct
connection to common IrDA encoder/decoder devices. If the XCLKOE bit alone is set to logic 1, the CLKO pin
outputs the system clock frequency divided by 2, 4, 6, or 8 as defined by clock-output divide bits (COD1:0). Setting
the IRDACK bit alone to logic 1 has no effect.
Interrupts
The microcontroller provides 16 interrupt sources with three priority levels. All interrupts, with the exception of the
power-fail interrupt, are controlled by a series combination of individual enable bits and a global interrupt enable EA
(IE.7). Setting EA to a 1 allows individual interrupts to be enabled. Clearing EA disables all interrupts regardless of
their individual enable settings.
The three available priority levels are low, high, and highest. The highest priority level is reserved for the power-fail
interrupt only. All other interrupts have individual priority bits that when set to a 1 establish the particular interrupt
as high priority. In addition to the user-selectable priorities, each interrupt also has an inherent natural priority, used
to determine the priority of simultaneously occurring interrupts. The available interrupt sources, their flags, enables,
natural priority, and available priority selection bits are identified in Table 26. Note that external interrupts 2–5 and
the 1-Wire bus master share a common interrupt vector (43h). Also note that external interrupt 5 and the 1-Wire
bus master interrupt are multiplexed to form a single interrupt request. When the 1-Wire bus master interrupt is
enabled (EOWMI = 1), it takes priority over external interrupt 5. In order for external interrupt 5 request to be used,
the 1-Wire bus master interrupt must be disabled (EOWMI = 0).
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相關(guān)代理商/技術(shù)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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