參數(shù)資料
型號: P83CL882
廠商: NXP Semiconductors N.V.
英文描述: 80C51 Ultra Low Power ULP telephony controller
中文描述: 80C51的超低功耗無鉛汽油電話控制器
文件頁數(shù): 21/88頁
文件大?。?/td> 328K
代理商: P83CL882
2001 Jun 19
21
Philips Semiconductors
Product specification
80C51 Ultra Low Power (ULP) telephony controller
P83CL882
Table 15
Interrupt related SFRs
SFR
DESCRIPTION
SFR ADDRESS
RESET VALUE
IEN0
IEN1
IEN2
IP0
IP1
IP2
IX1
ISE1
IRQ1
interrupt enable register 0
interrupt enable register 1 (INT2 to INT9)
interrupt enable register 2
interrupt priority register 0
interrupt priority register 1 (INT2 to INT9)
interrupt priority register 2
external interrupt polarity register 1
external interrupt sensitivity register 1
external interrupt request flag register 1
A8H
E8H
F1H
B8H
F8H
F9H
E9H
E1H
C0H
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
handbook, full pagewidth
MGR125
Interrupt level 2x
Interrupt level 1
Program level 0
RETI
Level 21
RETI
Level 20
RETI
one
instruction
IP = 1
IP = 1
IP = 0
Fig.11 Interrupt hierarchy.
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