
ML62Q1000 Series User's Manual
Chapter 6
Clock Generation Circuit
FEUL62Q1000
6-8
6.2.4 Clock Control Register (FCON)
FCON is a specific function register (SFR) to control the clock generation circuit and choose the system clock.
Address:
0xF006
Access:
R/W
Access size: 8 bits
Initial value: 0x00
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Word
-
Byte
-
FCON
Bit
-
-
-
-
-
-
-
-
LPLL
-
-
-
-
-
ENO
SC
SELS
CLK
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R/W
R/W
Initial
value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit No.
Bit symbol
name
Description
15 to 8
-
Reserved bit
7
LPLL
This bit indicates that the frequency of the PLL oscillation is within the target error. The
LPLL has the read-only attribute.
0:
The frequency of PLL oscillation is out of the target error or the PLL oscillation is
stopped (Initial value)
1:
The frequency of PLL oscillation is within the target error
6 to 2
-
Reserved bit
1
ENOSC
This bit is used to enable/start or disable/stop the oscillation of the high-speed clock
oscillation circuit.
0:
Disable/Stop the high-speed clock oscillation (Initial value)
1:
Enable/Star the high-speed clock oscillation (Initial value)
0
SELSCLK
This bit is used to choose the system clock.
When the high-speed generation circuit is stopped (ENOSC bit = "0"), the SELSCLK bit is
fixed to "0" and the low-speed clock (LSCLK) is chosen for the system clock.
0:
LSCLK (Initial value)
1:
High-speed clock chosen by the SYSC2 to SYSC0 bit
[Note]
Ÿ
ENOSC bit and SELSCLK bit are forcibly set to
"
1
"
after releasing the HALT-H mode.
Содержание ML62Q1000 Series
Страница 17: ...Chapter 1 Overview...
Страница 112: ...Chapter 2 CPU and Memory Space...
Страница 154: ...Chapter 3 Reset Function...
Страница 166: ...Chapter 4 Power Management...
Страница 196: ...Chapter 5 Interrupts...
Страница 248: ...Chapter 6 Clock generation Circuit...
Страница 274: ...Chapter 7 Low Speed Time Base Counter...
Страница 291: ...Chapter 8 16 Bit Timer...
Страница 320: ...Chapter 9 Functional Timer FTM...
Страница 382: ...Chapter 10 Watchdog Timer...
Страница 402: ...Chapter 11 Serial Communication Unit...
Страница 456: ...Chapter 12 I2 C Bus Unit...
Страница 491: ...Chapter 13 I2 C Master...
Страница 512: ...Chapter 14 DMA Controller...
Страница 531: ...Chapter 15 Buzzer...
Страница 550: ...Chapter 16 Simplified RTC...
Страница 559: ...Chapter 17 GPIO...
Страница 594: ...Chapter 18 External Interrupt Function...
Страница 612: ...Chapter 19 CRC Generator...
Страница 632: ...Chapter 20 Analog Comparator...
Страница 644: ...Chapter 21 D A Converter...
Страница 655: ...Chapter 22 Voltage Level Supervisor...
Страница 676: ...Chapter 23 Successive Approximation Type A D Converter...
Страница 709: ...Chapter 24 Regulator...
Страница 714: ...Chapter 25 Flash Memory...
Страница 743: ...Chapter 26 Code Option...
Страница 750: ...Chapter 27 LCD Driver...
Страница 788: ...Chapter 28 On Chip Debug Function...
Страница 795: ...Chapter 29 Safety Function...
Страница 813: ...Appendix A...
Страница 881: ...Revision History...