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Epson Research and Development Page 9
Vancouver Design Center
13708PLAY Diagnostic Utility S1D13708
Issue Date: 01/11/16 X39A-B-002-01
SHOW
Shows a test pattern on the display. The test pattern is based on current register settings and
may not display correctly if the registers are not configured properly.
Use this command to display an image during testing. After adjusting a register value, use
the show command to view the effect on the display.
W[S][8|16|32] [startaddr [data1 data2 data3 data4 ...]]
Writes the given data sequence to the display buffer starting at startaddr location.
Where:
S Sets the base address the beginning of system
memory. Without the “S” option, the base address is the
beginning of display buffer memory.
8|16|32 The unit size: 8-bit (bytes), 16-bit (words), 32-bit (dwords).
If a unit size is not specified, this command uses the unit size
from the last Write command performed. If no previous
Write command has been issued, the unit size defaults to
8-bit.
startaddr The starting address to write data to. Specifying a
period (.) uses the same starting address as the last Write
command performed.
data Values to write to the display buffer. If no data is given, then
this function enters MODIFY mode. This mode prompts the
user with the address and it's current data. While in this
mode, the user can type any of the following.
- new values (in hex)
- ENTER or SPACE - moves to the next memory
location (if data is specified the previous
memory location is updated, if no data is
specified no change is made)
- “-” - moves to the previous memory location
- “Q” or “.” - exits MODIFY mode
WI [8|16] data1 [data2 data3 ...]
For testing the indirect interface ONLY.
WI will write one or more data items to the data portion of the cmd/data cycle.
Where:
8|16 The unit size: 8-bit (bytes), 16-bit (words).
If a unit size is not specified, this command uses the unit size
from the last Read Indirect command performed. If no
previous Read Indirect command has been issued, the unit
size defaults to 8-bit.
data Values to write to the display buffer.
XA
Reads and displays the contents of all the S1D13708 registers.