SH7760 Datasheet, PDF (1120/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

(1) Power-Supply Control for STN/DSTN Panels
(in) DON register
(out) VCPWC pin
Start power supply
(out) Display data,
timing signal
Undefined
(out) VEPWC pin
Start power cutoff
Arbitrary
(out) DON pin
Register control
sequence
(a)= 0fr
(b)=1fr
(c)=1fr
(d)=1fr (e)=1fr
(out) LPS register
00b
LCD module
stopped
≠00b, 11b
11b
LCD module active
≠00b, 11b
VCPE = ON
Undefined
VEPE = ON
DONE = ON
(f)= 0fr
00b
LCD module
stopped
Figure 30.4 Power-Supply Control Sequence and States of the LCD Module
(2) Power-Supply Control for LCD Panels other than STN or DSTN
(in) DON register
(out) VCPWC pin
Start power supply
Start power cutoff (Internal signal)
VCPE = OFF
(out) Display data, _Undefined
timing signal
(out) VEPWC pin
Arbitrary
Undefined
(Internal signal)
VEPE = OFF
(out) DON pin
DONE = ON
Register control
sequence
(out) LPS register
(a)= 0 fr
(b)= 0 fr
00b
LCD module
stopped
(c)= 1 fr
≠00b, 11b
11b
LCD module active
(d)= 1 fr
≠00b, 11b
(f)= 0 fr
(e)= 0 fr
00b
LCD module
stopped
Figure 30.5 Power-Supply Control Sequence and States of the LCD Module
Rev. 1.0, 02/03, page 1070 of 1294