EP7312_05 Datasheet, PDF (49/64 Pages) Cirrus Logic – High-performance, Low-power, System-on-chip with SDRAM & Enhanced with SDRAM & Enhanced

EP7312
High-Performance, Low-Power System on Chip
256-Ball PBGA Ball Listing
The list is ordered by ball location.
Ball Location
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
Name
VDDIO
nCS[4]
nCS[1]
SDCLK
SDQM[3]
DD[1]
M
VDDIO
D[0]
D[2]
A[3]
VDDIO
A[6]
MOSCOUT
VDDOSC
VSSIO
nCS[5]
VDDIO
nCS[3]
nMOE/nSDCAS
VDDIO
nSDCS[1]
DD[2]
CL[1]
VDDCORE
D[1]
A[2]
A[4]
A[5]
WAKEUP
VDDIO
nURESET
VDDIO
EXPCLK
VSSIO
VDDIO
VSSIO
VSSIO
VSSIO
VDDIO
VSSIO
VSSIO
VSSIO
VDDIO
VSSIO
†
Strength
1
1
2
2
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
Schmitt
Schmitt
1
Table 22. 256-Ball PBGA Ball Listing
Reset
State
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
High
High
High
Low
Low
Low
Low
Low
Low
Type
Description
Pad power
O
O
O
O
O
O
Pad power
I/O
I/O
O
Pad power
O
O
Oscillator power
Pad ground
O
Pad power
O
O
Pad power
O
O
O
Core power
I/O
O
O
O
I
Pad power
I
Pad power
I
Pad ground
Pad power
Pad ground
Pad ground
Pad ground
Pad power
Pad ground
Pad ground
Pad ground
Pad power
Pad ground
Digital I/O power, 3.3 V
Chip select 4
Chip select 1
SDRAM clock out
SDRAM byte lane mask
LCD serial display data
LCD AC bias drive
Digital I/O power, 3.3 V
Data I/O
Data I/O
System byte address
Digital I/O power, 3.3V
System byte address
Main oscillator out
Oscillator power in, 2.5 V
I/O ground
Chip select 5
Digital I/O power, 3.3 V
Chip select 3
ROM, expansion OP enable/SDRAM CAS control signal
Digital I/O power, 3.3 V
SDRAM chip select 1
LCD serial display data
LCD line clock
Digital core power, 2.5V
Data I/O
System byte address
System byte address
System byte address
System wake up input
Digital I/O power, 3.3 V
User reset input
Digital I/O power, 3.3V
Expansion clock input
I/O ground
Digital I/O power, 3.3 V
I/O ground
I/O ground
I/O ground
Digital I/O power, 3.3 V
I/O ground
I/O ground
I/O ground
Digital I/O power, 3.3 V
I/O ground
DS508F1
©Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
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