參數(shù)資料
型號: A42MX04-1CQ100I
廠商: Electronic Theatre Controls, Inc.
英文描述: 40MX and 42MX FPGA Families
中文描述: 40MX和42MX FPGA系列
文件頁數(shù): 107/123頁
文件大?。?/td> 854K
代理商: A42MX04-1CQ100I
40MX and 42MX FPGA Families
1- 78
v6.0
TMS, I/O
Test Mode Select
The TMS pin controls the use of the IEEE 1149.1
Boundary Scan pins (TCK, TDI, TDO). In flexible mode
when the TMS pin is set LOW, the TCK, TDI and TDO pins
are boundary scan pins. Once the boundary scan pins are
in test mode, they will remain in that mode until the
internal boundary scan state machine reaches the "logic
reset" state. At this point, the boundary scan pins will be
released and will function as regular I/O pins. The "logic
reset" state is reached 5 TCK cycles after the TMS pin is
set HIGH. In dedicated test mode, TMS functions as
specified in the IEEE 1149.1 specifications. IEEE JTAG
specification recommends a 10k
pull-up resistor on the
pin. BST pins are only available in A42MX24 and
A42MX36 devices.
VCC
Supply Voltage
Input supply voltage for 40MX devices
VCCA
Supply Voltage
Supply voltage for array in 42MX devices
VCCI
Supply Voltage
Supply voltage for I/Os in 42MX devices
WD, I/O
Wide Decode Output
When a wide decode module is used in a 42MX device
this pin can be used as a dedicated output from the wide
decode
module.
This
direct
connection
eliminates
additional interconnect delays associated with regular
logic modules. To implement the direct I/O connection,
connect an output buffer of any type to the output of
the wide decode macro and place this output on one of
the reserved WD pins.
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