Manual

30 Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved) DS507F2
EP7309
High-Performance, Low-Power System on Chip
256-Ball PBGA Pinout (Top View))
256-Ball PBGA Ball Listing
The list is ordered by ball location.
1 2 3 4 5 6 7 8 9 10 11 12 13 141516
A VDDIO nCS[4] nCS[1] N/C N/C DD[1] M VDDIO D[0] D[2] A[3] VDDIO A[6] MOSCOUT VDDOSC VSSIO A
B nCS[5] VDDIO nCS[3] nMOE VDDIO N/C DD[2] CL[1] VDDCORE D[1] A[2] A[4] A[5] WAKEUP VDDIO nURESET B
C VDDIO EXPCLK VSSIO VDDIO VSSIO VSSIO VSSIO VDDIO VSSIO VSSIO VSSIO VDDIO VSSIO VSSIO nPOR nEXTPWR C
D WRITE EXPRDY VSSIO VDDIO nCS[2] nMWE N/C CL[2] VSSRTC D[4] nPWRFL MOSCIN VDDIO VSSIO D[7] D[8] D
E RXD[2] PB[7] TDI WORD VSSIO nCS[0] N/C FRM A[0] D[5] VSSOSC VSSIO
nMEDCHG/
nBROM
VDDIO D[9] D[10] E
F PB[5] PB[3] VSSIO TXD[2]
RUN/
CLKEN
VSSIO N/C DD[3] A[1] D[6] VSSRTC BATOK nBATCHG VSSIO D[11] VDDIO F
G PB[1] VDDIO TDO PB[4] PB[6] VSSRTC VSSRTC DD[0] D[3] VSSRTC A[7] A[8] A[9] VSSIO D[12] D[13] G
H PA[7] PA[5] VSSIO PA[4] PA[6] PB[0] PB[2] VSSRTC VSSRTC A[10] A[11] A[12] A[13] VSSIO D[14] D[15] H
J PA[3] PA[1] VSSIO PA[2] PA[0] TXD[1] CTS VSSRTC VSSRTC A[17] A[16] A[15] A[14] nTRST D[16] D[17] J
K LEDDRV PHDIN VSSIO DCD nTEST[1] EINT[3] VSSRTC ADCIN COL[4] TCLK D[20] D[19] D[18] VSSIO VDDIO VDDIO K
L RXD[1] DSR VDDIO nEINT[1]
PE[2]/
CLKSEL
VSSRTC
PD[0]/
LEDFLSH
VSSRTC COL[6] D[31] VSSRTC A[22] A[21] VSSIO A[18] A[19] L
M nTEST[0] nEINT[2] VDDIO
PE[0]/
BOOTSEL[0]
TMS VDDIO SSITXFR DRIVE[1] FB[0] COL[0] D[27] VSSIO A[23] VDDIO A[20] D[21] M
N 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] N
P VSSRTC RTCOUT VSSIO VSSIO VDDIO VSSIO VSSIO VDDIO VSSIO VDDIO VSSIO VSSIO VDDIO VSSIO D[24] VDDIO P
R RTCIN VDDIO PD[4] PD[1] SSITXDA nADCCS VDDIO ADCOUT COL[7] COL[3] COL[1] D[30] A[27] A[25] VDDIO A[24] R
T VDDRTC PD[7] PD[6] PD[3] SSICLK SSIRXFR VDDCORE DRIVE[0] FB[1] COL[5] VDDIO BUZ D[28] A[26] D[25] VSSIO T
Table 20. 256-Ball PBGA Ball Listing
Ball Location Name Type Description
A1 VDDIO Pad power Digital I/O power, 3.3V
A2 nCS[4] O Chip select out
A3 nCS[1] O Chip select out
A4 N/C O
A5 N/C O
A6 DD[1] O LCD serial display data
A7 M O LCD AC bias drive
A8 VDDIO Pad power Digital I/O power, 3.3V
A9 D[0] I/O Data I/O
A10 D[2] I/O Data I/O
A11 A[3] O System byte address
A12 VDDIO Pad power Digital I/O power, 3.3V
A13 A[6] O System byte address
A14 MOSCOUT O Main oscillator out
A15 VDDOSC
Oscillator
power
Oscillator power in, 2.5V
A16 VSSIO Pad ground I/O ground
B1 nCS[5] O Chip select out
B2 VDDIO Pad power I/O ground
B3 nCS[3] O Chip select out
B4 nMOE O ROM, expansion OP enable
B5 VDDIO Pad power Digital I/O power, 3.3V
B6 N/C O
Table 20. 256-Ball PBGA Ball Listing (Continued)
Ball Location Name Type Description