Epson S1C88650 User Manual

Page 27

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S1C88650 TECHNICAL MANUAL

EPSON

19

5 PERIPHERAL CIRCUITS AND THEIR OPERATION (I/O Memory Map)

Table 5.1.1(b) I/O Memory map (00FF10H–00FF14H)

SR R/W

Address Bit

Name

Function

Comment

1

0

00FF10 D7

D6

D5

D4

D3

D2

D1

D0

HLMOD

SEGREV

DTFNT

LDUTY1

LDUTY0

Heavy load protection mode

Reverse SEG assignment

R/W register

R/W register

R/W register

LCD dot font selection

LCD drive duty selection

Reserved register

0

0

0

0

0

0

1

0

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

On

Reverse

1

1

1

12

×

12

Off

Normal

0

0

0

16

Ч

16/5

Ч

8

00FF11 D7

D6

D5

D4

D3

D2

D1

D0

FRMCS

DSPAR

LCDC1

LCDC0

LC3

LC2

LC1

LC0

LCD frame signal source clock selection

LCD contrast adjustment

These bits are reset

to (0, 0) when

SLP instruction

is executed.

0

0

0

0

0

0

0

0

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

PTM

f

OSC1

LCDC1

1
1
0
0

LCDC0

1
0
1
0

LCD display

All LCDs lit
All LCDs out
Normal display
Drive off

LDUTY1

1
1
0
0

LDUTY0

1
0
1
0

Duty

Not allowed

1/16
1/32

1/8

LC3

1
1

:

0

LC2

1
1

:

0

LC1

1
1

:

0

LC0

1
0

:

0

Contrast

Dark

:
:

Light

Display area 1 Display area 0

LCD display memory area selection

LCD display control

00FF12 D7

D6

D5

D4

D3

D2

D1

D0

00FF14 D7

D6

D5

D4

D3

D2

D1

D0

PRPRT1

PST12

PST11

PST10

PRPRT0

PST02

PST01

PST00

Programmable timer 1 clock control

Programmable timer 1 division ratio

Programmable timer 0 clock control

Programmable timer 0 division ratio

0

0

0

0

0

0

0

0

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

On

On

Off

Off

PST12

1
1
1
1
0
0
0
0

PST11

1
1
0
0
1
1
0
0

PST10

1
0
1
0
1
0
1
0

(OSC3)

f

OSC3

/ 4096

f

OSC3

/ 1024

f

OSC3

/ 256

f

OSC3

/ 64

f

OSC3

/ 32

f

OSC3

/ 8

f

OSC3

/ 2

f

OSC3

/ 1

(OSC1)

f

OSC1

/ 128

f

OSC1

/ 64

f

OSC1

/ 32

f

OSC1

/ 16

f

OSC1

/ 8

f

OSC1

/ 4

f

OSC1

/ 2

f

OSC1

/ 1

PST02

1
1
1
1
0
0
0
0

PST01

1
1
0
0
1
1
0
0

PST00

1
0
1
0
1
0
1
0

(OSC3)

f

OSC3

/ 4096

f

OSC3

/ 1024

f

OSC3

/ 256

f

OSC3

/ 64

f

OSC3

/ 32

f

OSC3

/ 8

f

OSC3

/ 2

f

OSC3

/ 1

(OSC1)

f

OSC1

/ 128

f

OSC1

/ 64

f

OSC1

/ 32

f

OSC1

/ 16

f

OSC1

/ 8

f

OSC1

/ 4

f

OSC1

/ 2

f

OSC1

/ 1

SVDDT

SVDON

SVDS3

SVDS2

SVDS1

SVDS0

SVD detection data

SVD circuit On/Off

SVD criteria voltage setting

Constantly "0" when

being read

0

0

0

0

0

0

R

R/W

R/W

R/W

R/W

R/W

Low

On

Normal

Off

SVDS3

1
1
1

:

0

SVDS2

1
1
1

:

0

SVDS1

1
1
0

:

1

SVDS0

1
0
1

:

1

Voltage (V)

2.7
2.6
2.5

:

1.8

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