Table of Contents
Advertisement
18.5.10 Interrupt Control (Command 15-0)
Command 15-0 is a command that controls the interruption.
■ Command 15-0 (Interruption Control)
❍ Address: 13A
❍ Format
15
14
13
0
0
0
FIF:
VRAM filter end flag
(0: No VRAM filter end, 1: VRAM filter end)
LIF:
Line display end flag
(0: No line display end, 1: Line display end)
VIF:
VSYNC detection flag
(0: No VSYNC detection, 1: VSYNC detection)
FIE:
VRAM filter end interruption control
(0: The interruption is prohibited. 1: The interruption is enabled.)
LIE:
Line display end interruption control
(0: The interruption is prohibited. 1: The interruption is enabled.)
VIE:
VSYNC detection interruption control
(0: The interruption is prohibited. 1: The interruption is enabled.)
❍ [Function]
This command controls the interruption.
Please write "0" to clear the flag set once in FIF, LIF, and VIF.
H
12
11
10
9
0
0
FIF
LIF
8
7
6
5
VIF
0
0
0
CHAPTER 18 OSDC
4
3
2
1
0
0
FIE
LIE
0
VIE
623
Advertisement
Table of Contents
