參數(shù)資料
型號(hào)： XC3195A-4PP175I
廠商： XILINX INC
元件分類： FPGA
英文描述： Field Programmable Gate Arrays (XC3000A/L, XC3100A/L)
中文描述： FPGA, 484 CLBS, 6500 GATES, 227 MHz, PPGA175
封裝： PLASTIC, PGA-175
文件頁(yè)數(shù)： 28/50頁(yè)
文件大?。?/td> 474K
代理商： XC3195A-4PP175I
XC3000, XC3000A, XC3000L, XC3100, XC3100A Logic Cell Array Families
2-130
Slave Serial Mode
In Slave Serial mode, an external signal drives the CCLK
input(s) of the LCA device(s). The serial configuration
bitstream must be available at the DIN input of the lead
LCA device a short set-up time before each rising CCLK
edge. The lead LCA device then presents the preamble
data (and all data that overflows the lead device) on its
DOUT pin. There is an internal delay of 0.5 CCLK periods,
which means that DOUT changes on the falling CCLK
edge, and the next LCA device in the daisy-chain accepts
data on the subsequent rising CCLK edge.
Figure 24.
Slave Serial Mode.
D/P
RESET
X3157
LCA
General-
Purpose
User I/O
Pins
+5 V
M0
M1
PWRDWN
CCLK
DIN
STRB
D0
D1
D2
D3
D4
D5
D6
D7
RESET
I/O
Port
Micro
Computer
DOUT
HDC
LDC
M2
.
Other
I/O Pins
INIT
+5 V
5 k‰
If Readback is
Activated, a
5-k‰ Resistor is
Required in
Series with M1
*
Optional
Daisy-Chained
LCAs with
Different
Configurations
*
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