参数资料
型号: MC68CK338CPV14B1
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 14.4 MHz, MICROCONTROLLER, PQFP144
封装: PLASTIC, TQFP-144
文件页数: 10/133页
文件大小: 944K
代理商: MC68CK338CPV14B1
MC68CK338
MOTOROLA
MC68CK338TS/D
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
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
CTM PIOSM BLOCK
OUTPUT DATA BIT
SUBMODULE BUS
I/O PIN
OUTPUT DATA
DATA DIRECTION
REGISTER
INPUT
OUTPUT
DRIVER
INPUT DATA BIT
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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