SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
Interrupt and Trap Functions
5 - 9
Micronas
xxIC
Reset Value: - - 00
H
The
Interrupt Request Flag
is set by hardware whenever a service request from the
respective source occurs. It is cleared automatically upon entry into the interrupt service
routine or upon a PEC service. In the case of PEC service, the Interrupt Request flag
remains set if the COUNT field in register PECCx of the selected PEC channel
decrements to zero. This allows a normal CPU interrupt to respond to a completed PEC
block transfer.
Note: Modifying the Interrupt Request flag via software causes the same effect as if it
had been set or cleared by hardware.
Interrupt Priority Level and Group Level
The four bits of an ILVL bit field specify the priority level of a service request for the
arbitration of simultaneous requests. The priority increases with the numerical value of
ILVL, so 0000
B
is the lowest and 1111
B
is the highest priority level.
When more than one interrupt request on a specific level becomes active at the same
time, the values in the respective GLVL bit fields are used for second level arbitration to
select one request for servicing. Again the group priority increases with the numerical
value of GLVL, so 00
B
is the lowest and 11
B
is the highest group priority.
Bit
Function
GLVL
Group Level
Defines the internal order for simultaneous requests of the same priority.
3: Highest
group
priority
0: Lowest
group
priority
ILVL
Interrupt Priority Level
Defines the priority level for the arbitration of requests.
F
H
: Highest
priority
level
0
H
: Lowest
priority
level
xxIE
Interrupt Enable Control Bit
(individually enables/disables a specific
source)
‘0’:
Interrupt request is disabled
‘1’:
Interrupt Request is enabled
xxIR
Interrupt Request Flag
‘0’: No
request
pending
‘1’:
This source has raised an interrupt request
5
4
3
2
1
0
11
10
9
8
7
6
15
14
13
12
rw
rw
-
-
-
-
rw
rw
-
-
-
-
xxIE
xxIR
GLVL
ILVL
Содержание SDA 6000
Страница 3: ...Contents Overview...
Страница 21: ...Pin Description...
Страница 22: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Pin Descriptions 2 3 Micronas 2 Pin Descriptions...
Страница 29: ...Architectural Overview...
Страница 33: ...C16X Microcontroller...
Страница 34: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 C16X Microcontroller 4 3 Micronas 4 C16X Microcontroller...
Страница 88: ...Interrupt and Trap Function...
Страница 122: ...System Control Configuration...
Страница 159: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 System Control Configuration 6 40 Micronas...
Страница 160: ...Peripherals...
Страница 282: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Peripherals 7 124 Micronas...
Страница 283: ...Clock System...
Страница 284: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 3 Micronas 8 Clock System...
Страница 288: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 8 Micronas...
Страница 289: ...Sync System...
Страница 290: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Sync System 9 3 Micronas 9 Sync System...
Страница 301: ...Display Generator...
Страница 302: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 3 Micronas 10 Display Generator...
Страница 348: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 50 Micronas...
Страница 349: ...D A Converter...
Страница 352: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 D A Converter 11 6 Micronas...
Страница 353: ...Slicer and Acquisition...
Страница 354: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Slicer and Acquisition 12 3 Micronas 12 Slicer and Acquisition...
Страница 381: ...Register Overview...
Страница 398: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Register Overview 13 20 Micronas...
Страница 399: ...Elelctrical Characteristics...
Страница 400: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 3 Micronas 14 Electrical Characteristics...
Страница 411: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 14 Micronas...