Vrtotalreg (0X0A00 0408); Vrvisibreg (0X0A00 040A) - NEC VR4181 mPD30181 User Manual

21.4.5 VRTOTALREG (0x0A00 0408)

Bit 15
Name Reserved
R/W R
Reset 0
Bit 7
Name Vtot7
R/W R/W
Reset 0
Bit Name
15 to 9 Reserved
8 to 0 Vtot(8:0)

21.4.6 VRVISIBREG (0x0A00 040A)

Bit 15
Name DummyL
R/W R/W
Reset 0
Bit 7
Name Vact7
R/W R/W
Reset 0
Bit Name
15 DummyL
14 to 9 Reserved
8 to 0 Vact(8:0)
416
CHAPTER 21 LCD CONTROLLER
14 13
Reserved Reserved Reserved
R R
0 0
6 5
Vtot6 Vtot5
R/W R/W
0 0
0 is returned when read
Vertical total number of lines including vertical retrace period
14 13
Reserved Reserved Reserved
R R
0 0
6 5
Vact6 Vact5
R/W R/W
0 0
Dummy line inserting position
0 : Immediately before vertical blank
1 : Anywhere in vertical blank
0 is returned when read
Vertical visible number of lines
User's Manual U14272EJ3V0UM
12 11
Reserved Reserved
R R
0 0
4 3
Vtot4 Vtot3 Vtot2
R/W R/W
0 0
Function
12 11
Reserved Reserved
R R
0 0
4 3
Vact4 Vact3 Vact2
R/W R/W
0 0
Function
10 9
Reserved Vtot8
R R R/W
0 0
2 1
Vtot1 Vtot0
R/W R/W R/W
0 0
10 9
Reserved Vact8
R R R/W
0 0
2 1
Vact1 Vact0
R/W R/W R/W
0 0
8
0
0
0
8
0
0
0