mcf5274l Freescale Semiconductor, Inc, mcf5274l Datasheet - Page 40

• Manufacturer Part Number: mcf5274l
• Description: Mcf5275 Integrated Microprocessor Family Hardware
• Manufacturer: Freescale Semiconductor, Inc

Design Recommendations
6.7.1.2.1
The tables in the previous section can be used to configure the interface in the following example. To
interface one 2M x 32-bit x 4 bank SDRAM component (8 columns) to the MCF5275, the connections
would be as shown in
6.7.2
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
40
MCF5275
Pins
Row
Column
SDRAM
Pins
MCF5275
Pins
Row
Column
SDRAM
Pins
MCF5275
Pins
Row
Column
SDRAM
Pins
SDRAM
Pins
MCF5275
Pins
A15 A14 A13 A12 A11 A10 A9 A17 A19 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31
A15 A14 A13 A12 A11 A10 A9 A17 A19 A21 A23 A24 A25 A26 A27 A28 A29 A30 A31
A15 A14 A13 A12 A11 A10
A0
Table 36. MCF5275 to SDRAM Interface (32-Bit Port, 10-Column Address Lines)
15
Table 37. MCF5275 to SDRAM Interface (32-Bit Port, 11-Column Address Lines)
A0
15
Table 38. MCF5275 to SDRAM Interface (32-Bit Port, 12-Column Address Lines)
A0
15
2
2
2
Ethernet PHY Transceiver Connection
SDRAM Interfacing Example
A1
14
A1
14
3
A1
14
3
3
A15
A0
MCF5275 Integrated Microprocessor Family Hardware Specification, Rev. 1.1
A2
13
4
A2
13
4
13
A2
4
Table
A14
A3
12
A1
5
A3
12
5
A3
12
5
A4
11
6
A13
39.
A4
A2
11
6
A4
11
6
A5
Table 39. SDRAM Hardware Connections
10
7
A5
10
A12
7
A3
A5
10
7
A6
9
8
A6
9
8
A11
A4
A9
A6
9
8
A7
17
16
A7
17
16
A17 A19 A21 A23 A25 A26 A27 A28 A29 A30 A31
A10
A7
17
16
A5
A8
19
18
Preliminary
19
18
A8
A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19
19
18
A8
21
20
A6
A9
21
20
A9 A10 A11 A12 A13 A14 A15 A16 A17 A18
22
A9
21
20
A17
A7
23
22
23
A10 A11 A12 A13 A14 A15 A16 A17
23
22
A18
A8
24
24
25
24
A19
25
A9
25
26
26
26
A10 = CMD
27
27
A20
27
Table
28
28
28
Freescale Semiconductor
29
40.
29
29
BA0
A21
30
30
30
BA1
A22
31
31
31