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| 型号： | AN2001 |
| 厂商： | Motorola, Inc. |
| 英文描述： | Designing Expansion Boards |
| 中文描述： | 设计扩展板 |
| 文件页数： | 2/20页 |
| 文件大小： | 1724K |
| 代理商： | AN2001 |
Designing Expansion Boards for the Motorola MPC555EVB/ETAS ES2000
Rev. 1, 31 July 2001
MOTOROLA
2
2.2 Peripherals On The HCE
Peripherals can also be added on to the HCE bus. Chip selects CS[2] and CS[3] are available on the
HCE connectors. In addition, CSHCE could be used if the chip timing is the same as used by the mem-
ory on the EVB555 and can fit in a 1-Mbyte memory size. Peripherals that could be added include more
serial ports, an ethernet adapter, or USB circuitry.
Table 1 Host Communication Expansion Connector
A (CO106)
B (CO107)
PIN NAME
VCC3_3
VCC[5]
SDATA[31]
SDATA[29]
SDATA[27]
SDATA[25]
SDATA[23]
SDATA[21]
SDATA[19]
SDATA[17]
SDATA[15]
SDATA[13]
SDATA[11]
SDATA[9]
SDATA[7]
SDATA[5]
SDATA[3]
SDATA[1]
PIN NAME
VCC3_3
VCC[5]
SDATA[30]
SDATA[28]
SDATA[26]
SDATA[24]
SDATA[22]
SDATA[20]
SDATA[18]
SDATA[16]
SDATA[14]
SDATA[12]
SDATA[10]
SDATA[8]
SDATA[6]
SDATA[4]
SDATA[2]
SDATA[0]
GND
N/C
WE/AT[1]
WE/AT[3]
N/C
TSIZ0
N/C
SRESET
TP108
TP110
TP112/DIS
1
GND
PIN NAME
PIN NAME
VCC3_3
VCC5
SADDR30
SADDR28
SADDR26
SADDR24
SADDR22
SADDR20
SADDR18
SADDR16
SADDR14
SADDR12
SADDR10
SADDR8
GND
CSHCE
CS1
CS3
RD/WE
N/C
BDIP
N/C
TEA
BI/STS
N/C
BR/VF[1]/IWP[2]
FRZ/PTR
TP115
TP117
1
3
5
7
9
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
VCC3_3
VSTBY3_3
SADDR[31]
SADDR[29]
SADDR[27]
SADDR[25]
SADDR[23]
SADDR[21]
SADDR[19]
SADDR[17]
SADDR[15]
SADDR[13]
SADDR[11]
SADDR[9]
1
3
5
7
9
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
GND
N/C
CS[0]
CS[2]
OE
N/C
BURST
TP113
GND
N/C
WE/AT[0]
WE/AT[2]
N/C
TA
TS
TSIZ1
N/C
TP114
PORESET
BB/VF[2]/IWP[3]
BG/VF[0]/LWP[1]
CLKOUT
N/C
TP109
TP111
NOTES:
1. EVB555 boards (revision 1.1/1.2) can be modified by connecting pin 58 (TP112) to pin 78 (DIS) of the TI Flash
(IC400). This allows the TI Flash to be disabled and CS[0] to be useable by other devices. TP112 can then be
pulled to ground through a 2K
resistor. In addition, pin 6 of IC403 (/SGEOF) should be connected to pin 17 of
RN303, a spare pullup resistor, to prevent the floating input of IC403.
NOTE
: these changes disable the external reset configuration word drivers on the EVB555 and may cause limita-
tions with the ETAS ETK.
TP116
GND
59
60
GND
59
60
GND
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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