Sundance SMT148FX - Manual (Page 32)

10 Application to program the Flash
The Host can access the SMT148FX flash via the USB.
Before the Spartan is configured, the CPLD provides a link to the USB.
It also is the Flash controller.
10.1 Connections provided on the SMT148FX
Flash control signals and address bus
Coolrunner II CPLD
Virtex4Fx Spartan 3
Independent
configuration/control
signals
Independent
configuration/control
signals
Independent configuration signals
Flash
Common signals and buses for configuration purposes
D[7:0], CCLK, RDWR_B
Common Configuration
signals and data bus
Configuration
data
Flash control
SMT148FX
BUFFERED COMPORT 3 BUFFERED COMPORT 3
B
U
F
F
E
R
E
D
C
O
M
P
O
R
T
3
USB DEVICE USB DEVICE
U
S
B
D
E
V
I
C
E
Independent configuration/control
signals
Configuration
Switch
S
w
itc
h
c
ontrol
sign
a
ls
User Manual SMT148FX Page 32 of 48 Last Edited: 03/08/2009 11:42:00