Difference between revisions of "Arty S7"
From ScienceZero
(→Block RAM) |
(→Block RAM) |
||
Line 159: | Line 159: | ||
==Block RAM== | ==Block RAM== | ||
Each block RAM stores up to 36 Kbits of dual ported RAM and has a FIFO controller and a ECC unit. | Each block RAM stores up to 36 Kbits of dual ported RAM and has a FIFO controller and a ECC unit. | ||
− | + | Each 36 Kbit block can be configured as two independent 18 Kb dual ported RAM. | |
− | Two adjacent blocks can be configured as a 64Kb x 1 RAM. | + | Two adjacent 36 Kbit blocks can be configured as a 64Kb x 1 RAM. |
Each 36 Kbit block RAM can be configured as a 32K x 1, 16K x 2, 8K x 4, 4K x 9, 2K x 18, 1K x 36, or 512 x 72 in simple dual-port mode. | Each 36 Kbit block RAM can be configured as a 32K x 1, 16K x 2, 8K x 4, 4K x 9, 2K x 18, 1K x 36, or 512 x 72 in simple dual-port mode. | ||
Each 18 Kbit block RAM can be configured as a 16K x 1, 8K x2 , 4K x 4, 2K x 9, 1K x 18 or 512 x 36 in simple dual-port mode. | Each 18 Kbit block RAM can be configured as a 16K x 1, 8K x2 , 4K x 4, 2K x 9, 1K x 18 or 512 x 36 in simple dual-port mode. |
Revision as of 09:21, 22 December 2018
- 256 MB DDR3L memory and 16 MB Quad-SPI Flash
- Programmable from JTAG and Quad-SPI flash
- 100 MHz & 12MHz external clocks
- Internal ADC Dual-channel, 1 MSPS
- Powered from USB or any 7V-15V source
- Interaction and Sensory Devices
- 4 Switches
- 4 Buttons
- 1 Board Reset Button
- 1 FPGA Reset Button
- 4 Green LEDs
- 2 RGB LEDs
- Expansion Connectors:
- 4 Pmod connectors
- Arduino/chipKIT Shield connector
XC7S50-1CSGA324C | XC7S25-1CSGA324 | |
---|---|---|
Logic Slices | 8150 | 3650 |
6-Input LUTs | 32 600 | 14 600 |
Flip-Flops | 65 200 | 29 200 |
Block RAM | 75 * 4500 = 337.5 KByte | 45 * 4500 = 202.5 KByte |
DSP Slices | 120 | 80 |
Clock resources | 5 PLLs | 3 PLLs |
Contents
Pmod interface
Pinout of Pmod connector | |||||
---|---|---|---|---|---|
3V3 | GND | d3 | d2 | d2 | d0 |
3V3 | GND | d3 | d2 | d2 | d0 |
- The 6 pin interface is one horizontal row on the connector.
- The 12 pin interface use both rows, a module can use several connectors.
- Port JA and JB are unprotected and routed for high speed.
- Port JC and JD are protected with 200 Ohm series resistors and are shared with the Arduino shield interface (IO34-IO41 IO26-IO33)
Pmod JA | Pmod JB | Pmod JC | Pmod JD | |
---|---|---|---|---|
Pmod Type | High-Speed | High-Speed | Standard | Standard |
Series resistor | 0 Ohm | 0 Ohm | 200 Ohm | 200 Ohm |
Shared pins | – | – | IO34-IO41 | IO26-IO33 |
Pin 1 | L17 | P17 | U15 | V15 |
Pin 2 | L18 | P18 | V16 | U12 |
Pin 3 | M14 | R18 | U17 | V13 |
Pin 4 | N14 | T18 | U18 | T12 |
Pin 7 | M16 | P14 | U16 | T13 |
Pin 8 | M17 | P15 | P13 | R11 |
Pin 9 | M18 | N15 | R13 | T11 |
Pin 10 | N18 | P16 | V14 | U11 |
Arduino shield/chipKIT interface
45 total FPGA I/O (16 shared with Pmod connectors - IO34-IO41 IO26-IO33) 6 Single-ended 0-3.3V Analog inputs to XADC 3 (4 *S7-25) Differential 0-1.0V Analog input pairs to XADC
USB-UART bridge
- FTDI FT2232HQ USB-UART bridge with both JTAG and RS-232 ports
- JTAG is connected to the JTAG port on the FPGA
- RS-232 is connected to pin V12 and R12
- Two on-board status LEDs: the transmit LED (LD8) and the receive LED (LD7) (relative to the PC).
- Speed up to 12 MBit/s
Block RAM
Each block RAM stores up to 36 Kbits of dual ported RAM and has a FIFO controller and a ECC unit. Each 36 Kbit block can be configured as two independent 18 Kb dual ported RAM. Two adjacent 36 Kbit blocks can be configured as a 64Kb x 1 RAM. Each 36 Kbit block RAM can be configured as a 32K x 1, 16K x 2, 8K x 4, 4K x 9, 2K x 18, 1K x 36, or 512 x 72 in simple dual-port mode. Each 18 Kbit block RAM can be configured as a 16K x 1, 8K x2 , 4K x 4, 2K x 9, 1K x 18 or 512 x 36 in simple dual-port mode.
DSP48E1 slice
- 25-bit pre-adder with D register to enhance the capabilities of the A path
- INMODE control supports balanced pipelining when dynamically switching between multiply (A*B) and add operations (A:B)
- 25 x 18 multiplier
- 30-bit A input of which the lower 25 bits feed the A input of the multiplier, and the entire 30-bit input forms the upper 30 bits of the 48-bit A:B concatenate internal bus.
- Cascading A and B input
- Semi-independently selectable pipelining between direct and cascade paths
- Separate clock enables two-deep A and B set of input registers
- Independent C input and C register with independent reset and clock enable.
- CARRYCASCIN and CARRYCASCOUT internal cascade signals to support 96-bit accumulators/adders/subtracters in two DSP48E1 slices
- MULTSIGNIN and MULTSIGNOUT internal cascade signals with special OPMODE setting to support a 96-bit MACC extension
- Single Instruction Multiple Data (SIMD) Mode for three-input adder/subtracter which precludes use of multiplier in first stage
- Dual 24-bit SIMD adder/subtracter/accumulator with two separate CARRYOUT signals
- Quad 12-bit SIMD adder/subtracter/accumulator with four separate CARRYOUT signals
- 48-bit logic unit
- Bitwise logic operations – two-input AND, OR, NOT, NAND, NOR, XOR, and XNOR
- Logic unit mode dynamically selectable via ALUMODE
- Pattern detector
- Overflow/underflow support
- Convergent rounding support
- Terminal count detection support and auto resetting
- Cascading 48-bit P bus supports internal low-power adder cascade
- The 48-bit P bus allows for 12-bit/QUAD or 24-bit/DUAL SIMD adder cascade support
- Optional 17-bit right shift to enable wider multiplier implementation
- Dynamic user-controlled operating modes
- 7-bit OPMODE control bus provides X, Y, and Z multiplexer select signals
- Carry in for the second stage adder
- Support for rounding
- Support for wider add/subtracts
- 3-bit CARRYINSEL multiplexer
- Carry out for the second stage adder
- Support for wider add/subtracts
- Available for each SIMD adder (up to four)
- Cascaded CARRYCASCOUT and MULTSIGNOUT allows for MACC extensions up to 96 bits
- Optional input, pipeline, and output/accumulate registers
- Optional control registers for control signals (OPMODE, ALUMODE, and CARRYINSEL)
- Independent clock enable and resets for greater flexibility, with reset having priority.
- To save power when the first stage multiplier is not being used, the USE_MULT attribute allows the customer to gate off internal multiplier logic.