Requirements
2-16
AT91CAP9-STK Starter Kit User Guide
6351B–CAP–27-Jun-08
2.4.1.2.4 FPGA Clock
The MPIO Bus clock MPIOB24 is connected to the CLK1p clock input pin of the FPGA. An additional
external 12 MHz oscillator generates clock to the CLK14p clock input pin of the FPGA.
Spare clock PLL_OUTp and PLL_OUTn are connected to the EI14 interface.
FPGA clock part electrical connection is shown below.
Y5
K3750HBE-12MHz
VCC
4
GND
2
OE
1
OUT
3
CLOCK & PLL
U19K
EP2S15F484
CLK11p
M2
CLK9p
N3
CLK8p/DIFFIO_RX_C2p
N1
CLK10p/DIFFIO_RX_C3p
L2
CLK0p/DIFFIO_RX_C0p
L21
CLK2n/DIFFIO_RX_C1n
N21
CLK1n
M20
CLK3n
N19
CLK9n
N4
CLK11n
M3
CLK0n/DIFFIO_RX_C0n
L20
CLK2p/DIFFIO_RX_C1p
N22
CLK8n/DIFFIO_RX_C2n
N2
CLK10n/DIFFIO_RX_C3n
L3
CLK1p
M21
CLK3p
N20
CLK4p
AB13
CLK5p
AA12
CLK6p
AA11
CLK7p
Y10
CLK7n
W10
CLK6n
Y11
CLK5n
Y12
CLK4n
AA13
CLK12p
B11
CLK13p
B12
CLK14p
A13
CLK15p
C13
CLK12n
C11
CLK13n
C12
CLK14n
B13
CLK15n
D13
PLL_ENA
Y4
PLL5_OUT0n
B10
PLL5_OUT1n
D10
PLL5_OUT0p
A10
PLL5_OUT1p
C10
PLL6_OUT0p
AB10
PLL6_OUT1p
AA9
PLL6_OUT0n
AA10
PLL6_OUT1n
Y9
PLL5_FBp/OUT2p
B9
PLL5_FBn/OUT2n
C9
PLL6_FBp/OUT2p
W9
PLL6_FBn/OUT2n
V9
CLK_12M_R
R204
22R
3V3
L25
BLM18PG600
1
2
C279
330pF
1
2
C280
100nF
1
2
C281
100nF
1
2
MPIOB24
MPIOB24
CLK_12M_FPGA
R212
0R
R220
0R
R221
0R
R215
1K
NC
FPGA_PLLOUTp
R197
10K
VCCIO7
FPGA_PLLOUTn