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Field
Name
R/W
Description
17
PA
R/W
I/O PortA Clock Enable
0: Disable
1: Enable
18
PB
R/W
I/O PortB Clock Enable
0: Disable
1: Enable
19
PC
R/W
I/O PortC Clock Enable
0: Disable
1: Enable
20
PD
R/W
I/O PortD Clock Enable
0: Disable
1: Enable
21
Reserved
22
PF
R/W
I/O PortF Clock Enable
0: Disable
1: Enable
31:23
Reserved
APB peripheral clock enable register 2 (RCM_APBCLKEN2)
Offset address: 0x18
Reset value: 0x0000 0000
Access: Access in the form of word, half word and byte
Usually there is no wait cycle. However, when the peripheral on the APB2 bus is
accessed, the waiting state will be inserted until the APB2 peripheral access
ends.
All bits can be reset or cleared by software.
Note: When the peripheral clock is not enabled, the software cannot read the
value of the peripheral register, and the value returned is always 0x0.
Field
Name
R/W
Description
0
SYSCFG R/W
SYSCFG Clock Enable
0: Disable
1: Enable
4:1
Reserved
5
USART6 R/W
USART6 Clock Enable
0: Disable
1: Enable
8:6
Reserved
9
ADC
R/W
ADC Interface Clock Enable
0: Disable
1: Enable
10
Reserved