27 GRAPHICS ENGINE (GE)
27-54
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
Setting GE_END_IE to 1 enables end-of-execution interrupt requests to the ITC; setting to 0 disables
interrupts.
D[15:9] Reserved
D8
GE_ERR_IE0: Drawing Error Interrupt Enable Bit
Enables or disables interrupts caused by a drawing error.
1 (R/W): Interrupt enabled
0 (R/W): Interrupt disabled (default)
Setting GE_ERR_IE0 to 1 enables drawing error interrupt requests to the ITC; setting to 0 disables in-
terrupts.
D[7:1]
Reserved
D0
GE_ERR_IE1: Calculation Error Interrupt Enable Bit
Enables or disables interrupts caused by a calculation error.
1 (R/W): Interrupt enabled
0 (R/W): Interrupt disabled (default)
Setting GE_ERR_IE1 to 1 enables calculation error interrupt requests to the ITC; setting to 0 disables
interrupts.
GE Interrupt Flag Register 1 (GE_IF1)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
GE Interrupt
Flag Register 1
(GE_IF1)
0x302448
(8 bits)
D7–4 –
reserved
–
–
–
0 when being read.
D3–0 CALC_
ERR[3:0]
Calculation error status
CALC_ERR[3:0]
Error
0x0 R/W Reset by writing
0x0.
0xf–0x9
0x8
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
reserved
Decompress
Picture header
Font size
Radius
Circle location
Concave
Coordinates
Trace width
No error
D[7:4]
Reserved
D[3:0]
CALC_ERR[3:0]: Calculation Error Status Bits
Indicates whether an error has occurred in the calculation stage or not.
6.2 List of Calculation Errors
Table 27.
CALC_ERR[3:0]
Error
0xf to 0x9
Reserved
–
0x8
Decompress
A Decompress flag (0x80) exists in the image data specified by a de-
compression command.
*
3
0x7
Picture header The header of the image data specified by a decompression com-
mand is invalid.
0x6
Font size
The character width or height specified by a character command is 0.
0x5
Radius
The radius specified by a circle/solid filled circle command is invalid (or
less than 1).
0x4
Circle location
No arc/circular section to be drawn is specified in a circle/solid filled
circle command.
0x3
Concave
An illegal quadrilateral (concave) is specified in a solid filled quadri-
lateral command.
*
1
*
2
0x2
Coordinates
The area specified as the copy source in a copy command or clip-
ping area in a register configuration command is beyond the work
area.
0x1
Trace width
An illegal line width (less than 1 or a value that exceeds the object
size) is specified in a object (line) drawing command.
0x0
No error
No error has occurred.