參數(shù)資料
型號： MC56F8025VLD
廠商： Freescale Semiconductor
文件頁數(shù)： 145/161頁
文件大小： 0K
描述： IC DSP 16BIT DUAL HARV 44-LQFP
標(biāo)準(zhǔn)包裝： 800
系列： 56F8xxx
核心處理器： 56800E
芯體尺寸： 16-位
速度： 32MHz
連通性： I²C，LIN，SCI，SPI
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 35
程序存儲器容量： 32KB（16K x 16）
程序存儲器類型： 閃存
RAM 容量： 2K x 16
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x12b，D/A 2x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 105°C
封裝/外殼： 44-LQFP
包裝： 托盤
56F8035/56F8025 Data Sheet, Rev. 6
84
Freescale Semiconductor
6.3.2
SIM Reset Status Register (SIM_RSTAT)
This read-only register is updated upon any system reset and indicates the cause of the most recent reset.
It indicates whether the COP reset vector or regular reset vector (including Power-On Reset, External
Reset, Software Reset) in the vector table is used. This register is asynchronously reset during Power-On
Reset and subsequently is synchronously updated based on the precedence level of reset inputs. Only the
most recent reset source will be indicated if multiple resets occur. If multiple reset sources assert
simultaneously, the highest-precedence source will be indicated. The precedence from highest to lowest is
Power-On Reset, External Reset, COP Loss of Reference Reset, COP Time-Out Reset, and Software
Reset. Power-On Reset is always set during a Power-On Reset; however, Power-On Reset will be cleared
and External Reset will be set if the external reset pin is asserted or remains asserted after the Power-On
Reset has deasserted.
Figure 6-3 SIM Reset Status Register (SIM_RSTAT)
6.3.2.1
Reserved—Bits 15–7
This bit field is reserved. Each bit must be set to 0.
6.3.2.2
Software Reset (SWR)—Bit 6
When set, this bit indicates that the previous system reset occurred as a result of a software reset (written
1 to SWRST bit in the SIM_CTRL register).
6.3.2.3
COP Time-Out Reset (COP_TOR)—Bit 5
When set, this bit indicates that the previous system reset was caused by the Computer Operating Properly
(COP) module signaling a COP time-out reset. If COP_TOR is set as code starts executing, the COP reset
vector in the vector table will be used. Otherwise, the normal reset vector is used.
6.3.2.4
COP Loss of Reference Reset (COP_LOR)—Bit 4
When set, this bit indicates that the previous system reset was caused by the Computer Operating Properly
(COP) module signaling a loss of COP reference clock reset. If COP_LOR is set as code starts executing,
the COP reset vector in the vector table will be used. Otherwise, the normal reset vector is used.
6.3.2.5
External Reset (EXTR)—Bit 3
When set, this bit indicates that the previous system reset was caused by an external reset.
6.3.2.6
Power-On Reset (POR)—Bit 2
This bit is set during a Power-On Reset.
Base + $1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
SWR
COP_
TOR
COP_
LOR
EXTR
POR
0
Write
RESET
0
00
0
1
0
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