参数资料
型号: M38K09F8LHP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP64
封装: 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件页数: 113/133页
文件大小: 1359K
代理商: M38K09F8LHP
38K0 Group
Rev.3.00
Oct 05, 2006
page 80 of 129
REJ03B0192-0300
Fig. 115 State transitions of clock
Notes
Reset
C
M
7
“1
”←
“0
CM6
“0”
←→“1”
XIN 8-divide mode
f(
φ) = 0.75 MHz
CM7 = 0
CM6 = 0
CM5 = 0
PLLCON [4:3] = 00
1 : Switch the mode by the allows shown between the mode blocks. (Do not switch between the modes directly
without an allow.)
2 : Set the USB clock (fUSB) to 48 MHz when switching the system clock to fSYN.
3 : Do not change a division ratio of USB clock when using fSYN as the system clock.
4 : See section “PLL CIRCUIT” in details for enabling/disabling PLL operation and usage notes of fSYN.
5 : Set the system clock to XIN when entering STOP mode.
6 : In all modes, switching to WAIT mode is possible. When it is released, the MCU returns to the original mode. In
WAIT mode the timers can operate.
C
M
5
“1
”←
“0
Remarks : This diagram assumes that the 6 MHz signals are applied to XIN pin.
XIN 4-divide mode
f(
φ) = 1.5 MHz
CM7 = 0
CM6 = 0
CM5 = 0
PLLCON [4:3] = xx
(arbitrary)
C
M
7
“1
”←
“0
C
M
6
“0
“1
C
M
7
“0
“1
C
M
6
“0
”←
“1
C
M
7
“1
”←
“0
XIN 2-divide mode
f(
φ) = 3.0 MHz
CM7 = 1
CM6 = 0
CM5 = 0
PLLCON [4:3] = xx
(arbitrary)
CM6
“0”
←→“1”
XIN through mode
f(
φ) = 1.5 MHz
CM7 = 0
CM6 = 0
CM5 = 0
PLLCON [4:3] = xx
(arbitrary)
f(SYN) 2-divide mode
f(
φ) = 6.0 MHz
CM7 = 1
CM6 = 0
CM5 = 1
PLLCON [4:3] = 10
CM6
“0”
←→“1”
f(SYN) through mode
f(
φ) = 12.0 MHz
CM7 = 1
CM6 = 1
CM5 = 1
PLLCON [4:3] = 10
C
M
5
“1
”←
“0
Under planning
f(SYN) through mode
f(
φ) = 6.0 MHz
CM7 = 1
CM6 = 1
CM5 = 1
PLLCON [4:3] = 00
f(SYN) through mode
f(
φ) = 8.0 MHz
CM7 = 1
CM6 = 1
CM5 = 1
PLLCON [4:3] = 01
Note:
Set PLLCON [4:3] = 10 before
switching the system clock from XIN
to fSYN.
CM5
“0”
←→“1”
CM6
“0”
←→“1”
Note:
Set PLLCON [4:3] = 00 before switching
the system clock from XIN to fSYN.
CM5
“0”
←→“1”
CM6
“0”
←→“1”
Note:
Set PLLCON [4:3] = 01 before switching
the system clock from XIN to fSYN.
CM5
“0”
←→“1”
CM5
“0”
←→“1”
Note:
Set PLLCON [4:3] = 00 before switching
the system clock from XIN to fSYN.
Note:
Set PLLCON [4:3] = 01 before switching
the system clock from XIN to fSYN.
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