參數(shù)資料
型號(hào): EM78P468NAQ
廠商: ELAN Microelctronics Corp .
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 20/82頁
文件大?。?/td> 1491K
代理商: EM78P468NAQ
EM78P468N
8-BIT Microcontroller
16
Product Specification (V1.2) 03.15.2005
(This specification is subject to change without further notice)
CNT1EN = “1” :
Enable Counter 1. Count operation start.
4.1.14 RD/SBPCR (System, Booster and PLL Control Register)
(Address: 0Dh)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
--
CLK2
CLK1
CLK0
IDLE
BF1
BF0
CPUS
Bit 7:
Not used
Bit 6 ~ 4 (CLK2 ~ CLK0):
main clock selection bits for PLL mode (code option select)
CLK2
CLK1
CLK0
Main clock
Example Fs=32.768K
0
0
0
Fs*130
4.26 MHz
0
0
1
Fs*65
2.13 MHz
0
1
0
Fs*65/2
1.065 MHz
0
1
1
Fs*65/4
532 KHz
1
X
X
Fs*244
8 MHz
Bit 3 (IDLE) :
idle mode enable bit. This bit will decide the intended mode of the SLEP
instruction.
DLE=”0”+SLEP instr
* NOP
e added after SLEP instruction.
Ex
: IDL
ode
bit =
+SLEP instruc
“1”
ct
” +SLEP instruction + NOP instruction
Bit 2,1 (BF1,
BF1
uction => sleep mode
DLE=”1”+SLEP instruction => idle mode
instruction must b
ample
E m
: IDLE
tion + NOP instru ion
SLEEP mode : IDLE bit = “0
0):
LCD booster frequency select bit to adjust VLCD 2,3 driving.
BF0
Booster frequency
0
0
Fs
0
1
Fs/4
1
0
Fs/8
1
1
Fs/16
Bit 0
sub-o
CPUS = “0”:
sub-oscillator (Fs)
(CPUS):
CPU oscillator source select, When CPUS=0, the CPU oscillator select
scillator and the main oscillator is stopped.
CPUS = “1”:
main oscillator (Fm)
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