參數(shù)資料
型號: MC68CK338
廠商: Motorola, Inc.
元件分類: 32位微控制器
英文描述: Highly Integrated, Low-Power, 32-Bit Microcontroller
中文描述: 高度集成,低功耗,32位微控制器
文件頁數(shù): 107/133頁
文件大?。?/td> 798K
代理商: MC68CK338
MC68CK338
MC68CK338TS/D
MOTOROLA
107
R16FRCH contains the synchronized high word value of the 32-bit free-running counter or the value to
be loaded into the high word 32-bit free-running counter.
NOTE
When the RTCSM is disabled, writing to the 15-bit prescaler and 32-bit free-run-
ning counter may give unpredictable results.
R16FRCL contains the synchronized low word value of the 32-bit free-running counter or the value to
be loaded into the low word 32-bit free-running counter.
NOTE
When the RTCSM is disabled, writing to the 15-bit prescaler and 32-bit free-run-
ning counter may give unpredictable results.
6.12 Parallel Port I/O Submodule (PIOSM)
The port I/O submodule (PIOSM) provides I/O capability independent of other CTM6 modules. The
PIOSM handles up to eight input/output pins.
One PIOSM is contained in the CTM6.
Figure 25
shows a block diagram of the PIOSM.
Figure 25 PIOSM Block Diagram
R16FRCH —
RTCSM Free-Running Counter High Register
$YFF484
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESET:
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
R16FRCL —
RTCSM Free-Running Counter Low Register
$YFF486
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESET:
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
CTM PIOSM BLOCK
OUTPUT DATA BIT
SUBMODULE BUS
I/O PIN
OUTPUT DATA
REGISTER
DATA DIRECTION
REGISTER
INPUT
OUTPUT
DRIVER
INPUT DATA BIT
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