Digilent Cmod S6 Reference Manual - Page 4

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Cmod S6™ FPGA Board Reference Manual

Address (HEX

value)

0 (0x0)

1 (0x1)

2 (0x2)

3 (0x3)

4 (0x4)

5 (0x5)

6 (0x6)

7 (0x7)

8 (0x8)

9 (0x9)

10 (0xA)

11 (0xB)

The least significant bit in any register corresponds to the smallest pin number that it controls. Registers 6 through

11 will set up a pin controlled by registers 0 through 5 as an input if the corresponding bit in the register is a logic

'1' and will set up the pin as an output if the corresponding bit in the register is a logic '0'. For example, if the value

stored in register 6 is 11110000 in binary (0xF0 in HEX), the pins 1-4 on the Cmod S6 will be set as outputs and pins

5-8 will be set as inputs. When a pin is configured as an output, it will initially be driven low (logic '0').

The source code for this project can be found on the Cmod S6 product page of the Digilent website,

www.digilentinc.com.

Other product and company names mentioned may be trademarks of their respective owners.

Function

Stores the logic value present on pins 1 through 8

Stores the logic value present on pins 9 through 16

Stores the logic value present on pins 17 through 23

Stores the logic value present on pins 26 through 33

Stores the logic value present on pins 34 through 41

Stores the logic value present on pins 42 through 48

Controls the I/O state of pins 1 through 8

Controls the I/O state of pins 9 through 16

Controls the I/O state of pins 17 through 23

Controls the I/O state of pins 26 through 33

Controls the I/O state of pins 34 through 41

Controls the I/O state of pins 42 through 48

Table 1. DEPP Register Map for factory loaded configuration.

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