AT85C51SND3Bx
Figure 28. Interrupt Control System
Highest
Priority
Interrupts
00
01
10
11
External
Interrupt 0
EX0
IEN0.0
00
01
10
11
Timer 0
ET0
IEN0.1
00
01
10
11
External
Interrupt 1
EX1
IEN0.2
00
01
10
11
Timer 1
ET1
IEN0.3
00
01
10
11
Serial I/O
Port
ES
IEN0.4
00
01
10
11
Data Flow
Controller
EDFC
IEN0.5
00
01
10
11
Audio
Processor
EAUP
IEN0.6
00
01
10
11
USB
Controller
EUSB
IEN1.0
00
01
10
11
Keyboard
EKB
IEN1.1
00
01
10
11
PSI
Interface
EPSI
IEN1.2
00
01
10
11
SPI
Interface
ESPI
IEN1.3
00
01
10
11
NF
Controller
ENFC
IEN1.4
00
01
10
11
MMC
Controller
EMMC
IEN1.5
EA
IEN0.7
IPH/L
Interrupt Enable
Priority Enable
Lowest Priority Interrupts
57
7632A–MP3–03/06
ATMEL [ ATMEL ]
