SL11RIDE
Document #: 38-08007 Rev. **
Page 22 of 27
10.6
Fast EPP Pin Assignment and Description
Table 10-5. Fast EPP Pin Assignment and Description
Pin Name
Pin No.
GPIO Pins
Pin Type
GPIO & Fast EPP Pin Chip Revision 1.1
VDD
1
Power
+3.3 VDC Supply
D0
2
Bidir
External Memory Data Bus, Data0
D1
3
Bidir
External Memory Data Bus, Data1
D2
4
Bidir
External Memory Data Bus, Data2
D3
5
Bidir
External Memory Data Bus, Data3
D4
6
Bidir
External Memory Data Bus, Data4
D5
7
Bidir
External Memory Data Bus, Data5
D6
8
Bidir
External Memory Data Bus, Data6
D7
9
Bidir
External Memory Data Bus, Data7
D8
10
Bidir
External Memory Data Bus, Data8
D9
11
Bidir
External Memory Data Bus, Data9
D10
12
Bidir
External Memory Data Bus, Data10
D11
13
Bidir
External Memory Data Bus, Data11
GND
14
GND
Digital ground.
X1
15
Input
External 48-MHz Crystal or Clock Input.
X2
16
Output
External crystal output. No connection when X1 is used for clock input
VDD
17
Power
+3.3 VDC Supply
D12
18
Bidir
External Memory Data Bus, Data12
D13
19
Bidir
External Memory Data Bus, Data13
D14
20
Bidir
External Memory Data Bus, Data14
D15
21
Bidir
External Memory Data Bus, Data15
A20
22
Output
External Memory Address Bus, A20
A19
23
Output
External Memory Address Bus, A19
A18
24
Output
External Memory Address Bus, A18
A17
25
Output
External Memory Address Bus, A17
A16
26
Output
External Memory Address Bus, A16
A15
27
Output
External Memory Address Bus, A15
A14
28
Output
External Memory Address Bus, A14
A13
29
Output
External Memory Address Bus, A13
A12
30
Output
External Memory Address Bus, A12
A11
31
Output
External Memory Address Bus, A11
A10
32
Output
External Memory Address Bus, A10
A9
33
Output
External Memory Address Bus, A9
A8
34
Output
External Memory Address Bus, A8
A7
35
Output
External Memory Address Bus, A7
A6
36
Output
External Memory Address Bus, A6
A5
37
Output
External Memory Address Bus, A5
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