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| 型号： | P83C834CFP |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-bit microcontrollers with LCD-driver |
| 中文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | 10 X 10 MM, 1.75 MM HEIGHT, PLASTIC, SOT-307-2, QFP-44 |
| 文件页数： | 15/36页 |
| 文件大小： | 165K |
| 代理商： | P83C834CFP |
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1997 Jul 03
15
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
P83C434; P83C834
6.6
Special Function Registers (SFRs)
6.6.1
C
HANGES W
.
R
.
T
. 80C51
KERNEL
Removed SFRs: P3, P1, SCON and SBUF
Added SFRs: IG, MCON, OSCON, LCDCON and LCD0 to LCD11.
Table 10
Overview of the additional SFRs
All SFRs are Read/Write registers.
6.6.2
I
NTERRUPT
G
ATE
R
EGISTER
(IG)
Table 11
Interrupt Gate Register (address 97H)
Table 12
Description of IG bits
REGISTER
DESCRIPTION
ADDRESS
RESET VALUE
IG
MCON
OSCON
LCDCON
LCD0 to LCD5
LCD6 to LCD11
Interrupt Gate Register
Miscellaneous Control Register
Oscillator Control Register
LCD Control Register
97H
98H
B7H
B9H
00H
00H
01H
0CH
00H
00H
LCD segment display registers
9AH to 9FH
BAH to BFH
7
6
5
4
3
2
1
0
IG.7
IG.6
IG.5
IG.4
IG.3
IG.2
IG.1
IG.0
BIT
SYMBOL
DESCRIPTION
7 to 0
IG.7 to IG.0
gate signals for interrupt
from I/O lines P0.7 to P0.0. If signal IG.n is:
LOW, then no interrupt is possible
HIGH, then interrupt is possible
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