參數(shù)資料
型號(hào): EVAL-ADUC7036QSPZ
廠商: Analog Devices Inc
文件頁數(shù): 50/132頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR ADUC7036
設(shè)計(jì)資源: EVAL-ADUC7036 Schematic & Brd Outline
EVAL ADUC7036 Gerber Files
標(biāo)準(zhǔn)包裝: 1
系列: QuickStart™ PLUS 套件
主要目的: 電源管理,電池監(jiān)控器
嵌入式: 是,MCU,16/32 位
已用 IC / 零件: ADuC7036
已供物品: 板,線纜,文檔,仿真器,電源,軟件
ADuC7036
Rev. C | Page 24 of 132
RESET
There are four kinds of resets: external reset, power-on reset,
watchdog reset, and software reset. The RSTSTA register indicates
the source of the last reset and can be written to by user code to
initiate a software reset event. The bits in this register can be
cleared to 0 by writing to the RSTCLR MMR at 0xFFFF0234.
The bit designations in RSTCLR mirror those of RSTSTA.
These registers can be used during a reset exception service
routine to identify the source of the reset. The implications of
all four kinds of reset events are shown in Table 12.
RSTSTA Register
Name: RSTSTA
Address: 0xFFFF0230
Default Value: Varies according to type of reset (see Table 11)
Access: Read/write access
Function: This 8-bit register indicates the source of the last reset
event and can be written to by user code to initiate a software reset.
RSTCLR Register
Name: RSTCLR
Address: 0xFFFF0234
Access: Write only
Function: This 8-bit, write only register clears the corresponding
bit in RSTSTA.
Table 11. RSTSTA/RSTCLR MMR Bit Designations
Bit
Description
7 to 4
Not used. These bits are not used and always read as 0.
3
External reset.
Set automatically to 1 when an external reset occurs.
Cleared by setting the corresponding bit in RSTCLR.
2
Software reset.
Set to 1 by user code to generate a sofware reset.
Cleared by setting the corresponding bit in RSTCLR.1
1
Watchdog timeout.
Set automatically to 1 when a watchdog timeout occurs.
Cleared by setting the corresponding bit in RSTCLR.
0
Power-on reset.
Set automatically when a power-on reset occurs.
Cleared by setting the corresponding bit in RSTCLR.
1 If the software reset bit in RSTSTA is set, any write to RSTCLR that does not
clear this bit generates a software reset.
Table 12. Device Reset Implications
Impact
Reset
External Pins
to Default
State
Execute
Kernel
Reset All
External MMRs
(Excluding RSTSTA)
Reset All HV
Indirect
Registers
Reset
Peripherals
Reset
Watchdog
Timer
RSTSTA Status
(After a Reset
Event)
POR
Yes
RSTSTA[0] = 1
Watchdog
Yes
No
Yes
RSTSTA[1] = 1
Software
Yes
No
Yes
RSTSTA[2] = 1
External Pin
Yes
No
Yes
RSTSTA[3] = 1
1 RAM is not valid in the case of a reset following a LIN download.
2 The impact on RAM is dependent on the HVMON[3] contents if LVF is enabled. When LVF is enabled using HVCFG0[2], RAM has not been corrupted by the POR
mechanism if the LVF status bit, HVMON[3], is 1. See the Low Voltage Flag (LVF) section for more information.
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