參數(shù)資料
型號: ST92E141K4D1
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 16-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CDIP32
封裝: WINDOWED, SHRINK, CERAMIC, DIP-32
文件頁數(shù): 153/178頁
文件大?。?/td> 1097K
代理商: ST92E141K4D1
76/178
ST92141 - RESET AND CLOCK CONTROL UNIT (RCCU)
5.7 STOP MODE
Under control of the Wake-up Interrupt Manage-
ment Unit (WUIMU), the Reset/Stop Manager can
also stop all oscillators without resetting the de-
vice.
In Stop Mode all context information will be pre-
served. During this condition the internal clock will
be frozen in the high state.
Stop Mode is entered by programming the WUIMU
registers (See “WAKE-UP / INTERRUPT LINES
MANAGEMENT UNIT (WUIMU)” on page 55.). An
active transition on an External Wake Up line, exits
the chip from Stop Mode and the MCU resumes
execution after a delay of between 10239
CLOCK2 periods and 10239 CLOCK2 periods
plus the Oscillator Start Up Time.
On exiting from Stop mode an interrupt is generat-
ed and the EX_STP bit in CLK_FLAG will be set,
to indicate to the user program that the machine is
exiting from Stop mode.
Table 18. Internal Registers Reset Values
Register
Number
System Register
Reset Value
Page 0 Register
Reset Value
F
(SSPLR)
undefined
Reserved
E
(SSPHR)
undefined
(SPICR)
00h
D
(USPLR)
undefined
(SPIDR)
undefined
C
(USPHR)
undefined
(WCR)
7Fh
B
(MODER)
E0h
(WDTCR)
12h
A
(Page Ptr)
undefined
(WDTPR)
undefined
9
(Reg Ptr 1)
undefined
(WDTLR)
undefined
8
(Reg Ptr 0)
undefined
(WDTHR)
undefined
7
(FLAGR)
undefined
(NICR)
00h
6
(CICR)
87h
(EIVR)
x2h
5
(PORT5)
FFh
(EIPLR)
FFh
4
(PORT4)
FFh
(EIMR)
00h
3
(PORT3)
FFh
(EIPR)
00h
2
(PORT2)
FFh
(EITR)
00h
1
(PORT1)
FFh
Reserved
0
(PORT0)
FFh
Reserved
1
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