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參數(shù)資料
| 型號： | P83C434 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontrollers with LCD-driver |
| 中文描述： | 8位微控制器與LCD驅(qū)動器 |
| 文件頁數(shù)： | 16/36頁 |
| 文件大?。?/td> | 165K |
| 代理商： | P83C434 |
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1997 Jul 03
16
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
P83C434; P83C834
6.6.3
M
ISCELLANEOUS
C
ONTROL
R
EGISTER
(MCON)
This register is bit-addressable.
Table 13
Miscellaneous Control Register (address 98H)
Table 14
Description of MCON bits
6.6.4
O
SCILLATOR
C
ONTROL
R
EGISTER
(OSCON)
Table 15
Oscillator Control Register (address B7H)
Table 16
Description of OSCON bits
7
6
5
4
3
2
1
0
RUN32
SECINT
ILVL3
ILVL2
ILVL1
ILVL0
BIT
SYMBOL
DESCRIPTION
7 and 6
5
RUN32
Reserved.
Prevent stop of 32 kHz oscillator
in Power-down mode. If RUN32 is:
HIGH, then the 32 kHz oscillator is not stopped in Power-down mode.
LOW, then the 32 kHz oscillator is stopped in Power-down mode.
1-second interrupt flag
. Is set by hardware on overflow of the 1-second counter.
Can be Set/Reset via software. If SECINT is:
HIGH, then there is an interrupt on overflow.
LOW, then there is no interrupt on overflow.
The state of these bits determine the signal level of the inputs P0.m (m = 4 to 7) which
will generate the interrupt EI0 (dependent on bits IG.4 to IG.7 respectively).
If ILVLn (n = 0 to 3) is:
LOW, then P0.m = LOW, will cause an interrupt.
HIGH, then P0.m = HIGH, will cause an interrupt.
4
SECINT
3 to 0
ILVL3
to
ILVL0
7
6
5
4
3
2
1
0
OSCON.4
OSCON.3
OSCON.2
OSCON.1
OSCON.0
BIT
SYMBOL
DESCRIPTION
7 to 5
4 to 0
OSCON.4
to
OSCON.0
Reserved.
These 5 bits can hold a decimal value in the range of 0 to 31, that will be converted to a
current that controls the frequency of the CCO of the CPU clock; can be set by software.
The register value is converted to an analog current that controls the oscillator
(see Section 6.2.1).
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