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| 型號(hào)： | 71M6543GH-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封裝： | LEAD FREE, LQFP-100 |
| 文件頁(yè)數(shù)： | 93/157頁(yè) |
| 文件大小： | 2178K |
| 代理商： | 71M6543GH-IGT/F |
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71M6543F/H and 71M6543G/GH Data Sheet
40
2008–2011 Teridian Semiconductor Corporation
v1.2
Table 25: The TCON Register Bit Functions (SFR 0x88)
Bit
Symbol
Function
TCON[7]
TF1
The Timer 1 overflow flag is set by hardware when Timer 1 overflows.
This flag can be cleared by software and is automatically cleared when an
interrupt is processed.
TCON[6]
TR1
Timer 1 run control bit. If cleared, Timer 1 stops.
TCON[5]
TF0
Timer 0 overflow flag set by hardware when Timer 0 overflows. This flag
can be cleared by software and is automatically cleared when an interrupt
is processed.
TCON[4]
TR0
Timer 0 Run control bit. If cleared, Timer 0 stops.
TCON[3]
IE1
Interrupt 1 edge flag is set by hardware when the falling edge on external
pin int1 is observed. Cleared when an interrupt is processed.
TCON[2]
IT1
Interrupt 1 type control bit. Selects either the falling edge or low level on
input pin to cause an interrupt.
TCON[1]
IE0
Interrupt 0 edge flag is set by hardware when the falling edge on external
pin int0 is observed. Cleared when an interrupt is processed.
TCON[0]
IT0
Interrupt 0 type control bit. Selects either the falling edge or low level on
input pin to cause interrupt.
2.4.8
WD Timer (Software Watchdog Timer)
There is no internal software watchdog timer. Use the standard hardware watchdog timer instead (see
2.4.9
Interrupts
The 80515 provides 11 interrupt sources with four priority levels. Each source has its own interrupt request
flag(s) located in a special function register (TCON, IRCON, and SCON). Each interrupt requested by the
corresponding flag can be individually enabled or disabled by the enable bits in IEN0 (SFR 0xA8), IEN1
(SFR 0xB8), and IEN2 (SFR 0x9A). Figure 12 shows the device interrupt structure.
Referring to Figure 12, interrupt sources can originate from within the 80515 MPU core (referred to as
Internal Sources) or can originate from other parts of the 71M6543 SoC (referred to as External Sources).
There are seven external interrupt sources, as seen in the leftmost part of Figure 12, and in Table 26 and
Table 27 (i.e., EX0-EX6).
Interrupt Overview
When an interrupt occurs, the MPU vectors to the predetermined address as shown in Table 38. Once
the interrupt service has begun, it can be interrupted only by a higher priority interrupt. The interrupt service
is terminated by a return from instruction, RETI. When an RETI is performed, the processor returns to the
instruction that would have been next when the interrupt occurred.
When the interrupt condition occurs, the processor also indicates this by setting a flag bit. This bit is set
regardless of whether the interrupt is enabled or disabled. Each interrupt flag is sampled once per
machine cycle, then samples are polled by the hardware. If the sample indicates a pending interrupt when
the interrupt is enabled, then the interrupt request flag is set. On the next instruction cycle, the interrupt is
acknowledged by hardware forcing an LCALL to the appropriate vector address, if the following conditions
are met:
No interrupt of equal or higher priority is already in progress.
An instruction is currently being executed and is not completed.
The instruction in progress is not RETI or any write access to the registers IEN0, IEN1, IEN2, IP0 or IP1.
Special Function Registers for Interrupts
The following SFR registers control the interrupt functions:
The interrupt enable registers: IEN0, IEN1 and IEN2 (see Table 26, Table 27 and Table 28).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 71M6543GHT-IGT/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KB, PRES TEMP SENSOR, HI PREC - Bulk |
| 71M6543GHT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KB, PRES TEMP SENSOR, HI PREC - Tape and Reel |
| 71M6543G-IGT/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6543G-IGTR/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6543GT-IGT/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Bulk |
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