HW-SPAR3E-SK-US-G Xilinx Inc, HW-SPAR3E-SK-US-G Datasheet - Page 51

• Manufacturer Part Number: HW-SPAR3E-SK-US-G
• Description: KIT STARTER SPARTAN-3E
• Manufacturer: Xilinx Inc

Specifications of HW-SPAR3E-SK-US-G

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 122-1507

Spartan-3E FPGA Starter Kit Board User Guide
UG230 (v1.2) January 20, 2011
R
Function Set
Set CG RAM Address
Set DD RAM Address
Read Busy Flag and Address
Write Data to CG RAM or DD RAM
Table 5-4: Shift Patterns According to S/C and R/L Bits
Sets interface data length, number of display lines, and character font.
The Starter Kit board supports a single function set with value 0x28.
Execution Time: 40 μs
Set the initial CG RAM address.
After this command, all subsequent read or write operations to the display are to or from
CG RAM.
Execution Time: 40 μs
Set the initial DD RAM address.
After this command, all subsequent read or write operations to the display are to or from
DD RAM. The addresses for displayed characters appear in
Execution Time: 40 μs
Read the Busy flag (BF) to determine if an internal operation is in progress, and read the
current address counter contents.
BF = 1 indicates that an internal operation is in progress. The next instruction is not
accepted until BF is cleared or until the current instruction is allowed the maximum time to
execute.
This command also returns the present value of address counter. The address counter is
used for both CG RAM and DD RAM addresses. The specific context depends on the most
recent
Execution Time: 1 μs
Write data into DD RAM if the command follows a previous
command, or write data into CG RAM if the command follows a previous
Address
(S/C)
DB3
0
0
1
1
(R/L)
DB2
Set CG RAM Address
0
1
0
1
command.
Shift the cursor position to the left. The address counter is decremented by one.
Shift the cursor position to the right. The address counter is incremented by one.
Shift the entire display to the left. The cursor follows the display shift. The
address counter is unchanged.
Shift the entire display to the right. The cursor follows the display shift. The
address counter is unchanged.
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or
Set DD RAM Address
Operation
command issued.
Figure
Set DD RAM Address
5-3.
LCD Controller
Set CG RAM
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