Epson Research and Development

Page 37

Vancouver Design Center

 

 

 

7.3.2 Power Down/Up Timing

LCDPWR Override (REG[03h] bit 3)

HW Power Save

 

 

 

 

 

 

 

 

 

 

 

or

 

 

 

 

 

 

 

 

 

 

 

Software Power Save

11

 

 

00

 

 

REG[03h] bits [1:0]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FP Signals

Active

 

 

 

 

 

Inactive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t4

 

 

LCDPWR

t3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

Active

t5

 

 

 

 

 

t6

 

 

 

 

 

 

 

 

 

 

 

00

t1

t2

Inactive

11

Active

t7

Figure 7-10: Power Down/Up Timing

Table 7-10: Power Down/Up Timing

Symbol

Parameter

Min

Typ

Max

Units

t1

HW Power Save active to FPLINE, FPFRAME, FPSHIFT, FPDAT, DRDY

 

 

1

Frame

inactive - LCDPWR Override = 1

 

 

 

 

 

 

 

 

 

 

 

 

 

t2

HW Power Save inactive to FPLINE, FPFRAME, FPSHIFT, FPDAT, DRDY

 

 

1

Frame

active - LCDPWR Override = 1

 

 

 

 

 

 

 

 

 

 

 

 

 

t3

HW Power Save active to FPLINE, FPFRAME, FPSHIFT, FPDAT, DRDY

 

 

1

Frame

inactive - LCDPWR Override = 0

 

 

 

 

 

 

 

 

 

 

 

 

 

t4

LCDPWR low to FPLINE, FPFRAME, FPSHIFT, FPDAT, DRDY inactive

 

127

 

Frame

- LCDPWR Override = 0

 

 

 

 

 

 

 

 

 

 

 

 

 

t5

HW Power Save inactive to FPLINE, FPFRAME, FPSHIFT, FPDAT, DRDY,

 

0

 

Frame

LCDPWR active - LCDPWR Override = 0

 

 

 

 

 

 

 

 

 

 

 

 

 

t6

LCDPWR Override active (1) to LCDPWR inactive

 

 

1

Frame

t7

LCDPWR Override inactive (1) to LCDPWR active

 

 

1

Frame

Hardware Functional Specification

S1D13705

Issue Date: 02/02/01

X27A-A-001-10

Page 43
Image 43
Epson S1D13705 Power Down/Up Timing, Lcdpwr Override REG03h bit HW Power Save, REG03h bits FP Signals Active Inactive