參數(shù)資料
型號: SC16C2550BIBS,157
廠商: NXP Semiconductors
文件頁數(shù): 21/31頁
文件大?。?/td> 0K
描述: IC UART DUAL W/FIFO 32-HVQFN
標(biāo)準(zhǔn)包裝: 2,450
特點: 故障啟動位檢測
通道數(shù): 2,DUART
FIFO's: 16 字節(jié)
電源電壓: 2.5V,3.3V,5V
帶自動流量控制功能:
帶故障啟動位檢測功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-HVQFN(5x5)
包裝: 托盤
其它名稱: 935280309157
SC16C2550BIBS
SC16C2550BIBS-ND
39
2570N–AVR–05/11
ATmega325/3250/645/6450
10.9
Register Description
10.9.1
SMCR – Sleep Mode Control Register
The Sleep Mode Control Register contains control bits for power management.
Bits 3, 2, 1 – SM2:0: Sleep Mode Select Bits 2, 1, and 0
These bits select between the five available sleep modes as shown in Table 10-2.
Note:
1. Standby mode is only recommended for use with external crystals or resonators.
Bit 1 – SE: Sleep Enable
The SE bit must be written to logic one to make the MCU enter the sleep mode when the SLEEP
instruction is executed. To avoid the MCU entering the sleep mode unless it is the programmer’s
purpose, it is recommended to write the Sleep Enable (SE) bit to one just before the execution of
the SLEEP instruction and to clear it immediately after waking up.
Bit
765
4321
0
SM2
SM1
SM0
SE
SMCR
Read/Write
R
R/W
Initial Value
000
0000
0
Table 10-2.
Sleep Mode Select
SM2
SM1
SM0
Sleep Mode
000
Idle
0
1
ADC Noise Reduction
010
Power-down
011
Power-save
100
Reserved
101
Reserved
110
Standby(1)
111
Reserved
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