EP7312_05 Datasheet, PDF (53/64 Pages) Cirrus Logic – High-performance, Low-power, System-on-chip with SDRAM & Enhanced with SDRAM & Enhanced

Ball Location
M6
M7
M8
M9
M10
M11
M12
M13
M14
M15
M16
N1
N2
N3
N4
N5
N6
N7
N8
N9
N10
N11
N12
N13
N14
N15
N16
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
R1
R2
R3
R4
DS508F1
Name
VDDIO
SSITXFR
DRIVE[1]
FB[0]
COL[0]
D[27]
VSSIO
A[23]/DRA[4]
VDDIO
A[20]/DRA[7]
D[21]
nEXTFIQ
PE[1]/BOOTSEL[1]
VSSIO
VDDIO
PD[5]
PD[2]
SSIRXDA
ADCCLK
SMPCLK
COL[2]
D[29]
D[26]
HALFWORD
VSSIO
D[22]
D[23]
VSSRTC
RTCOUT
VSSIO
VSSIO
VDDIO
VSSIO
VSSIO
VDDIO
VSSIO
VDDIO
VSSIO
VSSIO
VDDIO
VSSIO
D[24]
VDDIO
RTCIN
VDDIO
PD[4]
PD[1]
EP7312
High-Performance, Low-Power System on Chip
Table 22. 256-Ball PBGA Ball Listing (Continued)
Strength^†
Reset
State
1
Low
2
High /
Low
1
High
1
Low
1
Low
1
Low
1
Low
1
Input^‡
1
Low
1
Low
1
Low
1
Low
1
High
1
Low
1
Low
1
Low
1
Low
1
Low
1
Low
1
Low
1
Low
Type
Pad power
I/O
I/O
I
O
I/O
Pad ground
O
Pad power
O
I/O
I
I/O
Pad ground
Pad power
I/O
I/O
I/O
O
O
O
I/O
I/O
O
Pad ground
I/O
I/O
RTC ground
O
Pad ground
Pad ground
Pad power
Pad ground
Pad ground
Pad power
Pad ground
Pad power
Pad ground
Pad ground
Pad power
Pad ground
I/O
Pad power
I/O
Pad power
I/O
I/O
Description
Digital I/O power, 3.3V
DAI/CODEC/SSI2 frame sync
PWM drive output
PWM feedback input
Keyboard scanner column drive
Data I/O
I/O ground
System byte address / SDRAM address
Digital I/O power, 3.3V
System byte address / SDRAM address
Data I/O
External fast interrupt input
GPIO port E / boot mode select
I/O ground
Digital I/O power, 3.3V
GPIO port D
GPIO port D
DAI/CODEC/SSI2 serial data input
SSI1 ADC serial clock
SSI1 ADC sample clock
Keyboard scanner column drive
Data I/O
Data I/O
Halfword access select output
I/O ground
Data I/O
Data I/O
Real time clock ground
Real time clock oscillator output
I/O ground
I/O ground
Digital I/O power, 3.3V
I/O ground
I/O ground
Digital I/O power, 3.3V
I/O ground
Digital I/O power, 3.3V
I/O ground
I/O ground
Digital I/O power
I/O ground
Data I/O
Digital I/O power, 3.3V
Real time clock oscillator input
Digital I/O power, 3.3V
GPIO port D
GPIO port D
©Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
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