參數(shù)資料
型號: UPD784908
廠商: NEC Corp.
英文描述: 16-BIT SINGLE-CHIP MICROCONTROLLER
中文描述: 16位單片機
文件頁數(shù): 35/98頁
文件大?。?/td> 657K
代理商: UPD784908
μ
PD784907, 784908
35
Data Sheet U11680EJ2V0DS00
8.2 Clock Generator
A circuit for generating the clock signal required for operation is provided. The clock generator has a frequency
divider. If high-speed operation is not necessary, the internal operating frequency can be lowered by the frequency
divider to reduce the current consumption.
Figure 8-2. Block Diagram of Clock Generator
Note
Set bit 7 of the standby control register (STBC) to 1.
Remark
f
XX
: Oscillator frequency or external clock input frequency
f
CLK
: Internal operating frequency
X1
X2
Oscillator
f
XX
f
CLK
Clock-synchronized 3-wire serial I/O (CSI)
Asynchronous serial I/O (UART/IOE)
INTP0 noise eliminator
Oscillation settling timer
Timer/counter
1/2
1/2
1/2
f
XX
/8
f
XX
/4
f
XX
/2
S
S
STBC.4, 5
CPU
Peripheral circuits
1
0
STBC.7
Operation clock of the IEBus controller
Note
Watch clock
Main clock
Watch timer
INTW interrupt signal
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