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參數(shù)資料
| 型號： | EM78P468N |
| 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)： | 25/82頁 |
| 文件大?。?/td> | 1491K |
| 代理商： | EM78P468N |
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EM78P468N
8-BIT Microcontroller
counter and read preset value. The pre-scaler is s
ption, it will auto reload the preset value.
interru
et by IOC91 register. After an
4.2.9
nter 2 Preset Register)
“
Bit 4
Bit 3
dd
C
IOCC0/CNT2PR (Cou
(A
ress: 0 h, Bit 0 of R5 = 0”)
Bit 7
Bit 6
Bit 5
Bit 2
Bit 1
Bit 0
B
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
it 7
Bit 6
Bit 5
Bit 7
8-bit down-count timer with 8-bit pre-scaler that is used as this register to preset the
e-scaler is set by IOC91 register. After an
counter and read preset value. The pr
interruption, it will reload the preset value.
nter 2 buffer that user can read and write. The Counter 2 is an
If the Counter 2 clock source is equal to F
T
–
~ Bit 0:
All are Cou
Whe IR output is enabled, this control register can obtain carrier frequency output.
Carrier frequency (Fcarrier) =
presc
*
aler
)
+
_
set
2
F
T
4.2.10 IOCD0/HPWTPR (
(Address: 0Dh, Bit 0 of R5 = “0”)
Bit 7
Bit 6
s
value
pre
(
*
ul
Width Ti
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 5
Bit 3
Bi
t 1
Bit 0
Bit 6
Bit 4
t 2
Bi
Bit 7 ~ Bit
High-pulse w th timer preset regis
id
that is used as IOCD
by IOCA1 register. After an
All are high-pulse
imer buffer that
eight-bit down-
an read and write.
ith 8-bit pre-scaler
counter w
0 to preset the counter and read preset value. The pre-scaler is set
interruption, it will reload the preset value.
0:
width t
ter is an
user c
For PWM or IR application, this control register is set as high pulse width.
If the high-pulse width timer source clock is F –
*
Product Specification
(V1.2) 03.15.2005
(This specification is subject to change without further notice)
21
High pulse time =
T
F
)
+
value
_
preset
(
prescaler
4.2.11 IOCE0/LPWTPR (Low-Pulse Width Timer Preset Register)
(Address: 0Eh, Bit 0 of R5 = “0”)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit
width timer pr
t 0:
All are low-p
eset is an eig
idth
t down-counter
ht-bi
buff
use
ad
ite.
lse
0
to preset the counter and read preset value. The pre-scaler is set by IOCA1 register.
it will reload the preset value.
After an interruption,
For P
width.
If the
7 ~ Bi
ulse w
timer
er that
with 8-b pre-scale that is us d as IOCE
r can re
and wr
Low-pu
WM or IR application, this control register is set as low pulse
low-pulse width timer source clock is F
T
–
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