参数资料
型号: 71M6541F-DB
厂商: Maxim Integrated Products
文件页数: 125/166页
文件大小: 0K
描述: DEMO BOARD 71M6541F
标准包装: 1
系列: *
71M6541D/F/G and 71M6542F/G Data Sheet
Name
Location
Rst Wk Dir
Description
This word describes the source of power and the status of the VDD.
VSTAT Description
000
001
System Power OK. V3P3A>3.0v. Analog modules are functional
and accurate. [V3AOK,V3OK] = 11
System Power Low. 2.8v<V3P3A<3.0v. Analog modules not
accurate. Switch over to battery power is imminent.
[V3AOK,V3OK] = 01
VSTAT[2:0]
SFR F9[2:0]
R
010
Battery power and VDD OK. VDD>2.25v. Full digital functionality.
[V3AOK,V3OK] = 00, [VDDOK,VDDgt2] = 11
011
101
Battery power and VDD>2.0. Flash writes are inhibited. If the
TRIMVDD[5] fuse is blown, PLL_FAST ( I/O RAM 0x2200[4] ) is
cleared.
[V3AOK,V3OK] = 00, [VDDOK,VDDgt2] = 01
Battery power and VDD<2.0. When VSTAT=101, processor is
nearly out of voltage. Processor failure is imminent.
[V3AOK,V3OK] = 00, [VDDOK,VDDgt2] = 00
WAKE_ARM
28B2[5]
0
R/W
Arms the WAKE timer and loads it with WAKE_TMR[7:0] . When SLEEP or
LCD_ONLY is asserted by the MPU, the WAKE timer becomes active.
WAKE_TMR[7:0]
2880[7:0]
0
R/W Timer duration is WAKE_TMR+1 seconds.
WD_RST
28B4[7]
0
0
W
Reset the WD timer. The WD is reset when a 1 is written to this bit. Writing a
one clears and restarts the watch dog timer.
DIO4 wake flag bit. If DIO4 is configured to wake the part, this bit is set
WF_DIO4
28B1[2]
0
R
whenever the de-bounced version of DIO4 rises. It is held in reset if DI04 is
not configured for wakeup.
DIO52 wake flag bit. If DIO52 is configured to wake the part, this bit is set
WF_DIO52
28B1[1]
0
R
whenever the de-bounced version of DIO52 rises. It is held in reset if DI052 is
not configured for wakeup.
DIO55 wake flag bit. If DIO55 is configured to wake the part, this bit is set
WF_DIO55
28B1[0]
0
R
whenever the de-bounced version of DIO55 rises. It is held in reset if DI055 is
not configured for wakeup.
WF_TMR
WF_PB
WF_RX
28B1[5]
28B1[3]
28B1[4]
0
0
0
R
R
R
Indicates that the wake timer caused the part to wake up.
Indicates that the PB caused the part to wake.
Indicates that RX caused the part to wake.
WF_CSTART
WF_RST
28B0[7]
28B0[6]
0
1
WF_RSTBIT
WF_OVF
28B0[5]
28B0[4]
0
0
R
Indicates that the Reset pin, Reset bit, ERST pin, Watchdog timer, the cold
start detector, or bad VBAT caused the part to reset.
WF_ERST
WF_BADVDD
Rev 4
28B0[3]
28B0[2]
0
0
125
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