ep7312 Cirrus Logic, Inc., ep7312 Datasheet - Page 44

• Manufacturer Part Number: ep7312
• Description: High-performance, Low-power, System-on-chip With Sdram & Enhanced Digital Audio Interface
• Manufacturer: Cirrus Logic, Inc.

EP7312
High-Performance, Low-Power System on Chip
44
P20
R1
R2
R3
R18
R19
R20
T1
T2
T3
T18
T19
T20
U1
U2
U3
U18
U19
U20
V1
V2
V3
V4
V5
V6
V7
V8
V9
V10
V11
V12
V13
V14
V15
V16
Ball Location
D[20]
nEXTFIQ
PE[2]/CLKSEL
nTEST[0]
A[19]/DRA[8]
D[22]
A[21]/DRA[6]
PE[1]/BOOTSEL[1]
PE[0]/BOOTSEL[0]
nEINT[1]
D[21]
D[23]
A[22]/DRA[5]
VSSRTC
RTCOUT
RTCIN
HALFWORD
D[24]
A[23]/DRA[4]
VDDRTC
VSSIO
VSSIO
PD[7]/SDQM[1]
PD[4]
PD[2]
SSICLK
SSIRXDA
nADCCS
VDDIO
ADCCLK
COL[7]
COL[4]
TCLK
BUZ
D[29]
Name
Strength
With p/u*
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Table 21. 204-Ball TFBGA Ball Listing (Continued)
†
©
Copyright Cirrus Logic, Inc. 2005
Input
Input
Input
Input
Reset
State
High
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
‡
‡
‡
‡
(All Rights Reserved)
RTC ground
RTC power
Pad ground
Pad ground
Pad power
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
Data I/O
External fast interrupt input
GPIO port E / clock input mode select
System byte address / SDRAM address
Data I/O
System byte address / SDRAM address
GPIO port E / boot mode select
GPIO port E / boot mode select
External interrupt input
Data I/O
Data I/O
System byte address / SDRAM address
Real time clock ground
Real time clock oscillator output
Real time clock oscillator input
Halfword access select output
Data I/O
System byte address / SDRAM address
Real time clock power, 2.5V
I/O ground
I/O ground
GPIO port D / SDRAM byte lane mask
GPIO port D
GPIO port D
DAI/CODEC/SSI2 serial clock
DAI/CODEC/SSI2 serial data input
SSI1 ADC chip select
Digital I/O power, 3.3V
SSI1 ADC serial clock
Keyboard scanner column drive
Keyboard scanner column drive
JTAG clock
Buzzer drive output
Data I/O
Test mode select input
Description
DS508F1