Orban Optimod-FM 8300 Operating Manual page 257

Digital audio processor
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OPTIMOD-FM DIGITAL
MECC4
5
2
+3.3 VDC
3
MECC6
4
MECC3
6
MECC2
7
8
MECC5
MECC1
9
MECC0
10
1
C
CTS 745?083102J
RN1
MA12
V26
MA12
MA11
U26
MA11
MD31
MA10
A24
T26
MD31
MA10
MD30
MA9
A23
R26
MD30
MA9
MD29
MA8
B21
R25
MD29
MA8
MD28
MA7
A20
P25
MD28
MA7
MD27
MA6
A19
P26
MD27
MA6
MD26
MA5
B18
N26
MD26
MA5
MD25
MA4
A17
N25
MD25
MA4
MD24
MA3
B16
M25
MD24
MA3
MD23
MA2
A15
M26
MD23
MA2
MD22
MA1
B14
L26
MD22
MA1
MD21
MA0
A13
L25
MD21
MA0
MD20
B12
MD20
MD19
BA1
A11
U25
MD19
BA1
MD18
BA0
B10
T25
MD18
BA0
MD17
A9
MD17
MD16
B8
MD16
MD15
B23
MD15
MD14
RAMWE-n
A22
E26
MD14
SWEA-n
MD13
RAMCAS-n
A21
F25
MD13
SCASA-n
MD12
RAMRAS-n
B20
K25
MD12
SRASA-n
MD11
RAMCS-n
A18
V25
MD11
SCS0-n
MD10
B17
MD10
MD9
SDQM3
A16
H25
MD9
SDQM3
MD8
SDQM2
B15
G26
MD8
SDQM2
MD7
SDQM1
A14
H26
MD7
SDQM1
MD6
SDQM0
B13
G25
MD6
SDQM0
MD5
SDQM[0..3]
A12
MD5
MD4
B11
K26
MD4
SRASB-n
MD3
A10
F26
MD3
SCASB-n
MD2
B9
E25
MD2
SWEB-n
MD1
A8
MD1
MD0
B7
W25
MD0
SCS1-n
R5
J25
SCS2-n
MECC6
22 ohm, 5%, 0805
Y26
J26
MECC6
SCS3-n
MECC5
D25
MECC5
MECC4
ClkMemOut
C26
B19
MECC4
ClkMemOut
MECC3
Y25
MECC3
MECC2
W26
MECC2
MECC1
D26
22 ohm, 5%, 0805
MECC1
MECC0
R6
C25
MECC0
ClkMemIn
A4
ClkMemIn
AMD ElanSC520-100AC
U1A
GPA[0..24]
ROMRd-n
FlashWR-n
BootCS-n
ResetDrv-n
DRAM Circuitry
MD[0..31]
MA[0..12]
MA12
MD15
36
53
A12
DQ15
MA11
MD14
35
51
A11
DQ14
MA10
MD13
22
50
A10/AP
DQ13
MA9
MD12
34
48
A9
DQ12
+3.3 VDC
MA8
MD11
33
47
A8
DQ11
MA7
MD10
32
45
A7
DQ10
MA6
MD9
31
44
A6
DQ9
MA5
MD8
30
42
A5
DQ8
MA4
MD7
29
13
A4
DQ7
MA3
MD6
R7
26
11
A3
DQ6
MA2
MD5
4.75k, 5%, 0805
25
10
A2
DQ5
MA1
MD4
24
8
A1
DQ4
MA0
MD3
23
7
A0
DQ3
MD2
5
DQ2
MD1
21
4
BA1
DQ1
MD0
20
2
BA0
DQ0
CKELow
SDQM1
37
39
CKE
UDQM
SDQM0
15
LDQM
16
WE-n
17
CAS-n
18
RAS-n
19
CS-n
38
CLK
32 Mbit x 16 SDRAM
U2A
DRAMClk
Route the ClkMemIn trace back and forth so that it is the
same length as the SDRAMClk trace to either chip.
C1
4.7 pf
Route the SDRAMCLK "T" style so that the trace length
to each SDRAM chip is the same length.
Place the two (2), 22 ohm series terminating resistors as
close as possible to the ElanSC520.
Place the 4.7 fp capacitor as close as possible to the
Elan SC520.
Adjust the value to equalize loading on
SDRAMCLK and ClkMemIn nets.
Flash Circuitry
GPA24
56
A24
GPA23
30
A23
GPA22
1
A22
GPA21
3
A21
GPA20
GPD15
4
52
A20
D15
GPA19
GPD14
5
50
A19
D14
GPD13
GPA18
6
47
A18
D13
GPD12
GPA17
7
45
A17
D12
GPA16
GPD11
8
41
A16
D11
GPA15
GPD10
10
39
A15
D10
GPD9
GPA14
11
36
A14
D9
GPD8
GPA13
12
34
A13
D8
GPA12
GPD7
13
51
A12
D7
GPA11
GPD6
17
49
A11
D6
GPD5
GPA10
18
46
A10
D5
GPD4
GPA9
19
44
A9
D4
GPA8
GPD3
20
40
A8
D3
GPA7
GPD2
22
38
A7
D2
GPD1
GPA6
23
35
A6
D1
GPD0
GPA5
24
33
A5
D0
GPA4
25
A4
GPA3
26
15
+3.3 VDC
A3
Vpen
GPA2
27
A2
GPA1
+3.3 VDC
28
A1
GPA0
32
A0
31
Byte-n
53
STS
54
OE-n
55
WE-n
14
CE0-n
2
CE1-n
29
CE2-n
16
RP-n
E28F128J3A-150
U4A
MA12
MD31
36
53
A12
DQ15
MA11
MD30
35
51
A11
DQ14
MA10
MD29
22
50
A10/AP
DQ13
MA9
MD28
34
48
A9
DQ12
+3.3 VDC
MA8
MD27
33
47
A8
DQ11
MA7
MD26
32
45
A7
DQ10
MA6
MD25
31
44
A6
DQ9
MA5
MD24
30
42
A5
DQ8
MA4
MD23
29
13
A4
DQ7
MA3
MD22
R8
26
11
A3
DQ6
MA2
MD21
4.75k, 5%, 0805
25
10
A2
DQ5
MA1
MD20
24
8
A1
DQ4
MA0
MD19
23
7
A0
DQ3
MD18
5
DQ2
MD17
21
4
BA1
DQ1
MD16
20
2
BA0
DQ0
CKEHigh
SDQM3
37
39
CKE
UDQM
SDQM2
15
LDQM
16
WE-n
17
CAS-n
18
RAS-n
19
CS-n
38
CLK
32 Mbit x 16 SDRAM
U3A
GPD[0..15]
+3.3 VDC
R9
10k, 5%, 0805
CPU Module: Memory
6-39
TECHNICAL DATA
GPD[0..15]
FlashStatus

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