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| 型號(hào)： | ORT42G5-EV |
| 廠商： | Lattice Semiconductor Corporation |
| 文件頁(yè)數(shù)： | 99/119頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL ORT42G5/CABLE/ADAPTER |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ORCA® 4 系列 |
| 類(lèi)型： | FPGA |
| 適用于相關(guān)產(chǎn)品： | ORT42G5 |
| 所含物品： | 板，線纜，電源 |
| 其它名稱(chēng)： | ORT42G5EV |
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Lattice Semiconductor
ORCA ORT42G5 and ORT82G5 Data Sheet
80
Pin Descriptions
This section describes the pins found on the Series 4 FPGAs. Any pin not described in this table is a user-program-
mable I/O. During conguration, the user-programmable I/Os are 3-stated with an internal pull-up resistor. If any pin
is not used (or not bonded to a package pin), it is also 3-stated with an internal pull-up resistor after conguration.
The pin descriptions in Table and throughout this data sheet show active-low signals with an overscore. The pack-
age pinout tables that follow, show this as a signal ending with _N. For example LDC and LDC_N are equivalent.
Table 40. Pin Descriptions
Symbol
I/O
Description
Dedicated Pins
VDD33
— 3.3V positive power supply. This power supply is used for 3.3V conguration RAMs and internal
PLLs. When using PLLs, this power supply should be well isolated from all other power supplies
on the board for proper operation.
VDD
15
— 1.5V positive power supply for internal logic.
VDDIO
— Positive power supply used by I/O banks.
VSS
— Ground.
PTEMP
I
Temperature sensing diode pin. Dedicated input.
RESET
I
During conguration, RESET forces the restart of conguration and a pull-up is enabled. After
conguration, RESET can be used as a general FPGA input or as a direct input, which causes
all PLC latches/FFs to be asynchronously set/reset.
CCLK
O
In the master and asynchronous peripheral modes, CCLK is an output which strobes congura-
tion data in.
I
In the slave or readback after conguration, CCLK is input synchronous with the data on DIN or
D[7:0]. CCLK is an output for daisy-chain operation when the lead device is in master, periph-
eral, or system bus modes.
DONE
I
As an input, a low level on DONE delays FPGA start-up after conguration.
1
O
As an active-high, open-drain output, a high level on this signal indicates that conguration is
complete. DONE has an optional pull-up resistor.
PRGRM
I
PRGRM
is an active-low input that forces the restart of conguration and resets the boundary-
scan circuitry. This pin always has an active pull-up.
RD_CFG
I
This pin must be held high during device initialization until the INIT pin goes high. This pin
always has an active pull-up. During conguration, RD_CFG is an active-low input that activates
the TS_ALL function and 3-states all of the I/O.
After conguration, RD_CFG can be selected
(via a bit stream option) to activate the TS_ALL function as described above, or, if readback is
enabled via a bit stream option, a high-to-low transition on RD_CFG will initiate readback of the
conguration data, including PFU output states, starting with frame address 0.
RD_DATA/TDO
O
RD_DATA/TDO is a dual-function pin. If used for readback, RD_DATA provides conguration
data out. If used in boundary-scan, TDO is test data out.
CFG_IRQ/MPI_IRQ
O
During JTAG, slave, master, and asynchronous peripheral conguration assertion on this
CFG_IRQ
(active-low) indicates an error or errors for block RAM or FPSC initialization.
MPI
active-low interrupt request output, when the MPI is used.
LVDS_R
— Reference resistor connection for controlled impedance termination of Series 4 FPGA LVDS
inputs.
Special-Purpose Pins
M[3:0]
I
During powerup and initialization, M0—M3 are used to select the conguration mode with their
values latched on the rising edge of INIT. During conguration, a pull-up is enabled.
I/O After conguration, these pins are user-programmable I/O.
1
PLL_CK[0:7][TC]
I
Semi-dedicated PLL clock pins. During conguration they are 3-stated with a pull up.
I/O These pins are user-programmable I/O pins if not used by PLLs after conguration.
P[TBLR]CLK[1:0][TC]
I
Pins dedicated for the primary clock. Input pins on the middle of each side with differential pair-
ing.
I/O After conguration these pins are user programmable I/O, if not used for clock inputs.
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