NuMicro® NUC029LEE/NUC029SEE
32-bit Arm
®
Cortex
®
-M0 Microcontroller
Aug, 2018
Page
293
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497
Rev 1.00
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UC02
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UC029
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CHN
ICA
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PWM2 Synchronous Busy Status Register (SYNCBUSY2)
Register
Offset
R/W
Description
Reset Value
SYNCBUSY2
0x90
R
PWM2 Synchronous Busy Status Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
S_BUSY
Bits
Description
[31:1]
Reserved
Reserved.
[0]
S_BUSY
PWM Synchronous Busy
When Software writes CNR2/CMR2/PPR or switch PWM2 operation mode
(PCR[19]), PWM will have a busy time to update these values completely because
PWM clock may be different from system clock domain. Software needs to check
this busy status before writing CNR2/CMR2/PPR or switching PWM2 operation
mode (PCR[19]) to make sure previous setting has been updated completely.
This bit will be set when software writes CNR2/CMR2/PPR or switch PWM2
operation mode (PCR[19]) and will be cleared by hardware automatically when PWM
update these value completely.