NXP Semiconductors QN902 Series, User Manual

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NXP Semiconductors
QN902x
User Manual of QN902x
UM10996 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
User Manual Rev 1.3
— 05 November 2018
104 of 128
watchdog unit.
00Ch INTCLR A write of any value to the Register clears the watchdog
interrupt, and reloads the counter from the value in
WDOGLOAD.
010h RAWINTSTAT Read-only. It indicates the raw interrupt status from the
counter.
014h MASKINTSTA
T Read-only. It indicates the masked interrupt status from
the counter.
C00h LOCK Write-only. This register disables the write-accesses to all
other registers.
F00h ITCR R/W. It is a single-bit register that enables integration
test mode.
F04h ITOP Write-only. When in integration test mode, the values in
this register directly drive the enabled interrupt output
and reset output.
13.2.2 Register Description
Table 77 Watchdog Load Register (WDOGLOAD)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 0
LO
A
D
[31
]
LO
A
D
[30
]
LO
A
D
[29
]
LO
A
D
[28
]
LO
A
D
[27
]
LO
A
D
[26
]
LO
A
D
[25
]
LO
A
D
[24
]
LO
A
D
[23
]
LO
A
D
[22
]
LO
A
D
[21
]
LO
A
D
[20
]
LO
A
D
[19
]
LO
A
D
[18
]
LO
A
D
[17
]
LO
A
D
[16
]
LO
A
D
[15
]
LO
A
D
[14
]
LO
A
D
[13
]
LO
A
D
[12
]
LO
A
D
[11
]
LO
A
D
[10
]
LO
A
D
[9]
LO
A
D
[8]
LO
A
D
[7]
LO
A
D
[6]
LO
A
D
[5]
LO
A
D
[4]
LO
A
D
[3]
LO
A
D
[2]
LO
A
D
[1]
LO
A
D
[0]
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
Bit Type Reset Symbol Description
31-0 RW FFFFFF
FFh
LOAD Contains the value from which the counter is to decrement.
When this register is written to, the count is immediately
restarted from the new value. The minimum valid value is 1.
Table 78 Watchdog Value Register (WDOGVALUE)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1 0
VALU
E[3
1]
VALU
E[3
0]
VALU
E[2
9]
VALU
E[2
8]
VALU
E[2
7]
VALU
E[2
6]
VALU
E[2
5]
VALU
E[2
4]
VALU
E[2
3]
VALU
E[2
2]
VALU
E[2
1]
VALU
E[2
0]
VALU
E[1
9]
V
A
LU
E[1
8]
VALU
E[1
7]
VALU
E[1
6]
VALU
E[1
5]
VALU
E[1
4]
VALU
E[1
3]
VALU
E[1
2]
VALU
E[1
1]
VALU
E[1
0]
VALU
E[9
]
VALU
E[8
]
VALU
E[7
]
VALU
E[6
]
VALU
E[5
]
VALU
E[4
]
VALU
E[3
]
VALU
E[2
]
VALU
E[1
]
VALU
E[0
]
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
Bit Type Reset Symbol Description
31-0 RW FFFFFFFFh VALUE The current value of the decrementing counter.