hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 369

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

Table 13.3 Output Levels
Data
M
Static
1/2 duty
1/3 duty
1/4 duty
13.3.6
In the H8/3867 Series, the LCD controller/driver can be operated even in the power-down modes.
The operating state of the LCD controller/driver in the power-down modes is summarized in table
13.4.
In subactive mode, watch mode, and subsleep mode, the system clock oscillator stops, and
therefore, unless øw, øw/2, or øw/4 has been selected by bits CKS3 to CKS0, the clock will not be
supplied and display will halt. Since there is a possibility that a direct current will be applied to
the LCD panel in this case, it is essential to ensure that øw, øw/2, or øw/4 is selected. In active
(medium-speed) mode, the system clock is switched, and therefore CKS3 to CKS0 must be
modified to ensure that the frame frequency does not change.
Table 13.4 Power-Down Modes and Display Operation
Mode
Clock
Display
operation ACT = “1” Stops
Notes: 1. The subclock oscillator does not stop, but clock supply is halted.
354
2. The LCD drive power supply is turned off regardless of the setting of the PSW bit.
3. Display operation is performed only if øw, øw/2, or øw/4 is selected as the operating
4. The clock supplied to the LCD stops.
Operation in Power-Down Modes
ø
øw
ACT = “0” Stops
clock.
Common output
Segment output
Common output
Segment output
Common output
Segment output
Common output
Segment output
Reset Active
Runs
Runs
Runs
Runs
Stops
Functions Functions Functions
Sleep
Runs
Runs
Stops
0
0
V
V
V
V
V
V
V
V
1
1
2
1
3
2
3
2
, V
3
Watch
Stops
Runs
Stops
0
1
V
V
V
V
V
V
V
V
SS
SS
2
SS
2
3
2
3
* 3
, V
Sub-
active
Stops
Runs
Stops
Functions
3
*3
Sub-
sleep
Stops
Runs
Stops
Functions
1
0
V
V
V
V
V
V
V
V
1
SS
1
SS
1
SS
1
SS
*3
Standby
Stops
Stops
Stops
Stops
1
1
V
V
V
V
V
V
V
V
*1
*2
*2
SS
1
SS
1
SS
1
SS
1
Module
Standby
Stops
Stops
Stops
Stops
*4
*4