參數(shù)資料
型號: QSMRM
英文描述: QSMRM QSM Queued Serial Module Reference Manual
中文描述: QSMRM QSM排隊串行模塊參考手冊
文件頁數(shù): 99/112頁
文件大小: 1496K
代理商: QSMRM
QSM
REFERENCE MANUAL
MOTOROLA
-3
between $0 (interrupts disabled) and $7 (highest priority).
ILSCI — Interrupt Level of SCI
LSCI determines the priority level of all SCI interrupts. Program this field to a value be-
tween $0 (interrupts disabled) and $7 (highest priority).
* QILR — QSM Interrupt Level Register
INTV — Interrupt Vector
Bits [15:13] — Not Implemented
SCBR — Baud Rate
The SCI baud rate is programmed by writing a 13-bit value to SCBR.
SCI Baud = System Clock/(32 * SCBR)
where SCBR equals {1, 2, 3,... 8191}.
Bit 15 — Not Implemented
LOOPS — LOOP Mode
LOOPS controls a feedback path on the data serial shifter.
1 = Test SCI operation, looping, feedback path enabled
0 = Normal SCI operation, no looping, feedback path disabled
WOMS — Wired-OR Mode for SCI Pins
1 = If configured as an output, TXD is an open-drain output.
0 = If configured as an output, TXD is a normal CMOS output.
ILT — Idle-Line Detect Type
1 =Long idle-line detect (starts counting when the first one is received after a stop
bit(s))
0 =Short idle-line detect (starts counting when the first one is received)
QIVR
— QSM Interrupt Vector Register
15
$YFFC05
1
8
7
6
5
4
3
2
0
QILR*
INTV
RESET:
0
0
0
0
1
1
1
1
SCCR0
— SCI Control Register 0
15
14
13
0
0
0
RESET:
0
0
0
$YFFC08
1
12
11
10
9
8
7
6
5
4
3
2
0
SCBR
0
0
0
0
0
0
0
0
0
0
1
0
0
SCCR1
— SCI Control Register 1
15
14
13
0
LOOPS WOMS
RESET:
0
0
0
$YFFC0A
1
RWU
12
ILT
11
PT
10
PE
9
M
8
7
6
5
4
3
2
0
WAKE
TIE
TCIE
RIE
ILIE
TE
RE
SBK
0
0
0
0
0
0
0
0
0
0
0
0
0
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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