參數(shù)資料
型號: MC56F8345
廠商: Motorola, Inc.
英文描述: 56F8345 16-bit Hybrid Controller
中文描述: 56F8345 16位混合控制器
文件頁數(shù): 104/148頁
文件大小: 1420K
代理商: MC56F8345
104
56F8345 Technical Data
Preliminary
Figure 6-11 GPIO Peripheral Select Register (SIM_GPS)
6.5.8.1
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
Reserved—Bits 15–4
6.5.8.2
This bit selects the alternate function for GPIO C3.
GPIO C3 (C3)—Bit 3
0 = HOME1/TB3 (default - see “Switch Matrix Mode” bits of the Quad Decoder DECCR register
in the
56F8300 Peripheral User’s Manual
)
1 = SS1
6.5.8.3
This bit selects the alternate function for GPIO C2.
GPIO C2 (C2)—Bit 2
0 = INDEX1/TB2 (default)
1 = MISO1
Table 6-2 Control of Pads Using SIM_GPS Control
1
1.
bits is used for each pin.
This applies to the four pins that serve as Quad Decoder / Quad Timer / SPI / GPIOC functions. A separate set of control
Pin Function
Control Registers
Comments
G
G
S
Q
S
O
GPIO Input
0
0
GPIO Output
0
1
Quad Timer Input /
Quad Decoder
Input
2
2.
Reset configuration
1
0
0
See the “Switch Matrix for Inputs to the Timer”
table in the
56F8300 Peripheral User Manual
for the definition of timer inputs based on the
Quad Decoder mode configuration.
Quad Timer
Output / Quad
Decoder Input
3
3.
Quad Decoder pins are always inputs and function in conjunction with the Quad Timer pins.
1
0
1
SPI input
1
1
See SPI controls for determining the direction
of each of the SPI pins.
SPI output
1
1
Base + $B
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
0
0
0
0
0
0
0
0
0
0
0
C3
C2
C1
C0
Write
RESET
0
0
0
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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MC56F8346 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers