參數(shù)資料
型號: MCF5232
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: Integrated Microprocessor Hardware Specification
中文描述: 集成的微處理器,硬件規(guī)格
文件頁數(shù): 23/60頁
文件大?。?/td> 1462K
代理商: MCF5232
Design Recommendations
MCF523x Integrated Microprocessor Hardware Specification, Rev. 1.3
Preliminary
Freescale Semiconductor
23
4.7.1.3
The tables in the previous section can be used to configure the interface in the following example. To
interface one 2M
×
32-bit
×
4 bank SDRAM component (8 columns) to the MCF523
x
, the connections
would be as shown in
Table 22
.
SDRAM Interfacing Example
4.7.2
Ethernet PHY Transceiver Connection
The FEC supports both an MII interface for 10/100 Mbps Ethernet and a seven-wire serial interface for 10
Mbps Ethernet. The interface mode is selected by R_CNTRL[MII_MODE]. In MII mode, the 802.3
standard defines and the FEC module supports 18 signals. These are shown in
Table 23
.
Table 19. MCF523
x
to SDRAM Interface (32-Bit Port, 10-Column Address Lines)
MCF523x
Pins
A15 A14 A13 A12 A11 A10 A9 A17 A19 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31
Row
15
14
13
12
11
10
9
17
19
21
22
23
24
25
26
27
28
29
30
31
Column
2
3
4
5
6
7
8
16
18
20
SDRAM
Pins
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19
Table 20. MCF523
x
to SDRAM Interface (32-Bit Port, 11-Column Address Lines)
MCF523x
Pins
A15 A14 A13 A12 A11 A10
A9
A17 A19 A21 A23 A24 A25 A26 A27 A28 A29 A30 A31
Row
15
14
13
12
11
10
9
17
19
21
23
24
25
26
27
28
29
30
31
Column
2
3
4
5
6
7
8
16
18
20
22
SDRAM
Pins
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10 A11 A12 A13 A14 A15 A16 A17 A18
Table 21. MCF523
x
to SDRAM Interface (32-Bit Port, 12-Column Address Lines)
MCF523x
Pins
A15 A14 A13 A12 A11 A10
A9
A17 A19 A21 A23 A25 A26 A27 A28 A29 A30 A31
Row
15
14
13
12
11
10
9
17
19
21
23
25
26
27
28
29
30
31
Column
2
3
4
5
6
7
8
16
18
20
22
24
SDRAM
Pins
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10 A11 A12 A13 A14 A15 A16 A17
Table 22. SDRAM Hardware Connections
SDRAM
Pins
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10 = CMD
BA0
BA1
MCF523x
Pins
A15
A14
A13
A12
A11
A10
A9
A17
A18
A19
A20
A21
A22
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