參數(shù)資料
型號: CTMRM
英文描述: Configurable Timer Module Reference Manual
中文描述: 配置定時器模塊參考手冊
文件頁數(shù): 65/164頁
文件大小: 1148K
代理商: CTMRM
CTM
REFERENCE
MOTOROLA
7-7
SINGLE ACTION SUBMODULE (SASM)
For More Information On This Product,
Go to: www.freescale.com
7
7.5.1
SICA — SASM status/interrupt/control register A
This register contains the control, interrupt enable and status bits for SASM channel A. It also
contains the interrupt priority level bits IL[2:0] and the arbitration priority bit IARB3 for the whole
SASM (i.e. common to channels A and B).
FLAG — Event flag bit
The FLAG bit is set whenever an input capture or output compare event occurs. This flag bit is set
only by the hardware and cleared only by the software or by a system reset. If the IL field is
non-zero, and the IEN bit is set, an interrupt request is generated when the FLAG bit is set.
1 (set)
An input capture or output compare event has occurred.
0 (clear) –
An input capture or output compare event has not occurred.
In IC mode, if a subsequent input capture event occurs while the FLAG bit is set, the new value is
latched and the FLAG bit remains set.
In OC mode, if a subsequent output compare event occurs while the FLAG bit is set, the compare
occurs normally and the FLAG bit remains set.
In OCT mode, if a subsequent output compare event occurs while the FLAG bit is set, the toggle
of the output signal occurs as normal and the FLAG bit remains set.
In OP mode, if a subsequent internal compare event occurs while the FLAG bit is set, the compare
occurs normally and the FLAG bit remains set.
(1) Offset fromthe base address of the SASMsubmodule.
(1) Offset fromthe base address of the SASMsubmodule.
Table 7-1
SASM register map
Address
(1)
$00
$02
$04
$06
$08
$0A
$0C
$0E
15
8 7
0
SASMstatus/interrupt/control register A (SICA)
SASMdata register A (SDATA)
SASMstatus/interrupt/control register B (SICB)
SASMdata register A (SDATB)
Bit:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SICA
$00
(1)
FLAG
IL2
IL1
IL0
IARB3
IEN
BSL
IN
FORCE EDOUT
MODE1 MODE0
Reset:
0
0
0
0
0
0
0
0
u
0
0
0
0
0
0
0
F
.
Freescale Semiconductor, Inc.
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