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參數(shù)資料
| 型號： | T48C862x-Rf-TNQ |
| 廠商： | Atmel Corp. |
| 元件分類： | 4位微控制器 |
| 英文描述： | Microcontroller with UHF ASK/FSK Transmitter |
| 中文描述： | 微控制器，帶有超高頻ASK / FSK發(fā)射器 |
| 文件頁數(shù)： | 30/108頁 |
| 文件大小： | 1023K |
| 代理商： | T48C862X-RF-TNQ |
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30
T48C862-R4 [Preliminary]
4551C–4BMCU–01/04
The microcontroller block has various power-down modes. During the sleep mode the
clock for the microcontroller block core is stopped. With the NSTOP bit in the clock man-
agement register (CM), it is programmable if the clock for the on-chip peripherals is
active or stopped during the sleep mode. If the clock for the core and the peripherals is
stopped, the selected oscillator is switched off. An exception is the 32-kHz oscillator, if it
is selected it runs continuously independent of the NSTOP bit. If the oscillator is stopped
or the 32-kHz oscillator is selected, power consumption is extremely low.
Table 8.
Power-down Modes
Peripheral Modules
Addressing Peripherals
Accessing the peripheral modules takes place via the I/O bus (see Figure 27 on page
31). The IN or OUT instructions allow direct addressing of up to 16 I/O modules. A dual
register addressing scheme has been adopted to enable direct addressing of the pri-
mary register. To address the auxiliary register, the access must be switched with an
auxiliary switching module. Thus, a single IN (or OUT) to the module address will read
(or write into) the module primary register. Accessing the auxiliary register is performed
with the same instruction preceded by writing the module address into the auxiliary
switching module. Byte wide registers are accessed by multiple IN- (or OUT-) instruc-
tions. For more complex peripheral modules, with a larger number of registers,
extended addressing is used. In this case, a bank of up to 16 subport registers are indi-
rectly addressed with the subport address. The first OUT instruction writes the subport
address to the sub address register, the second IN or OUT instruction reads data from
or writes data to the addressed subport.
Mode
Active
Power-
down
SLEEP
Note:
CPU
Core
RUN
Osc-
Stop
(1)
NO
Brown-
out
Function
Active
RC-oscillator 1
RC-oscillator 2
4-MHz
Oscillator
RUN
32-kHz
Oscillator
RUN
External
Input
Clock
YES
SLEEP
NO
Active
RUN
RUN
YES
SLEEP
YES
STOP
STOP
RUN
STOP
1. Osc-Stop = SLEEP and NSTOP and WDL
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相關(guān)代理商/技術(shù)參數(shù) |
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| T48C862X-RF-TNS | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller with UHF ASK/FSK Transmitter |
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