Epson S1C17624 Technical Manual page 261

23 lCD DRiVeR (lCD)
lDuTY[2:0]
0x7–0x5
0x4
0x3
0x2
0x1
0x0
lDuTY[2:0]
0x7–0x5
0x4
0x3
0x2
0x1
0x0
lCD Voltage Regulator Control Register (lCD_VReG)
Register name address Bit
lCD Voltage 0x50a3 D7–5 –
Regulator
(8 bits)
D4
Control Register
D3–1 –
(lCD_VReG)
D0
For more information on the control bit, see "LCD Voltage Regulator Control Register (LCD_VREG)" in the "Power
Supply" chapter.
lCD interrupt Mask Register (lCD_iMSK)
Register name address Bit
lCD interrupt 0x50a5 D7–1 –
Mask Register
(8 bits)
(lCD_iMSK)
D0
D[7:1] Reserved
D0 FRMie: Frame Signal interrupt enable Bit
Enables or disables frame interrupts.
1 (R/W): Interrupt enabled
0 (R/W): Interrupt disabled (default)
Setting FRMIE to 1 enables LCD interrupt requests to the ITC. Setting to 0 disables interrupts.
lCD interrupt Flag Register (lCD_iFlG)
Register name address Bit
lCD interrupt 0x50a6 D7–1 –
Flag Register
(8 bits)
(lCD_iFlG) D0
D[7:1] Reserved
D0 FRMiF: Frame Signal interrupt Flag Bit
Indicates the frame interrupt cause occurrence status.
1 (R): Cause of interrupt has occurred
0 (R): No cause of interrupt has occurred (default)
1 (W): Flag is reset
0 (W): Ignored
FRMIF is set to 1 at the frame signal rising edge. FRMIF is reset to 0 by writing 1.
23-18
Table 23. 8.7 Drive Duty Settings (S1C17624/622)
Duty Valid COM pins
Reserved
1/8 COM0 to COM7
1/4 COM0 to COM3
1/3 COM0 to COM2
1/2 COM0 to COM1
Static
Table 23. 8.8 Drive Duty Settings (S1C17604/602/621)
Duty Valid COM pins
Reserved
1/8 COM0 to COM7
1/4 COM0 to COM3
1/3 COM0 to COM2
1/2 COM0 to COM1
Static
name Function
reserved
lhVlD
LCD heavy load protection mode
reserved
VCSel V reference voltage select
C
name Function
reserved
FRMie
Frame signal interrupt enable
name Function
reserved
FRMiF Frame signal interrupt flag
Seiko epson Corporation
Valid SeG pins
– –
SEG0 to SEG51
SEG0 to SEG55
SEG0 to SEG55
SEG0 to SEG55
COM0 SEG0 to SEG55
Valid SeG pins
– –
SEG0 to SEG35
SEG0 to SEG39
SEG0 to SEG39
SEG0 to SEG39
COM0 SEG0 to SEG39
Setting
–
1 On 0 Off
–
1 V 0 V
C2
Setting
–
1 Enable 0 Disable
Setting
–
1 Occurred 0 Not occurred
S1C17624/604/622/602/621 TeChniCal Manual
Max. number of
display segments
–
416 segments
224 segments
168 segments
112 segments
56 segments
(Default: 0x4)
Max. number of
display segments
–
288 segments
160 segments
120 segments
80 segments
40 segments
(Default: 0x4)
init. R/W Remarks
– – 0 when being read.
0 R/W
– – 0 when being read.
0 R/W
C1
init. R/W Remarks
– – 0 when being read.
0 R/W
init. R/W Remarks
– – 0 when being read.
0 R/W Reset by writing 1.