XC68HC705F32 Motorola, XC68HC705F32 Datasheet - Page 91

• Manufacturer Part Number: XC68HC705F32
• Description: MICROCONTROLLER
• Manufacturer: Motorola

8.4
WTLCDO — WAIT mode LCD only
If this bit is set, the SPI, the SCI, the second 16-bit timer and the A/D converter are turned off in
WAIT mode, reducing the power consumption, as only the core timer, the first 16-bit timer (timerA),
the DMG and the LCD controller remain active.
FSEL1, FSEL0 — LCD operation frequency
These bits select the LCD operation frequency according to
right columns are calculated for an external frequency of 3.579 MHz.
INTVLCD — Internal voltage generator ON/OFF
When the INTVLCD bit is set, the display controller is on and an internal voltage generator is
activated and connected to the resistor chain (V
MC68HC05F32
LCD control register (LCD)
1 (set)
0 (clear) –
1 (set)
0 (clear) –
FSEL1: FSEL0
LCD control register (LCD)
0 0
1 0
0 1
1 1
–
–
The SPI, the SCI, the second 16-bit timer and the A/D converter are
turned off in WAIT mode.
The SPI, the SCI, the second 16-bit timer and the A/D converter
remain active during WAIT mode.
The display is on and an internal voltage generator is activated.
The internal voltage generator is turned off.
LIQUID CRYSTAL DISPLAY DRIVER MODULE
Address
$001E WTLCDO FSEL1 FSEL0 INTVLCD FDISP MUX4 MUX3 EXTVON 0000 0000
Frame frequency
(2, 4 backplanes)
F
F
F
F
OSC
OSC
OSC
OSC
Table 8-3 Frequency selection
bit 7
/2
/2
/2
/2
16
15
14
9
bit 6
Frame frequency
(3 backplanes)
4F
4F
4F
4F
OSC
OSC
OSC
OSC
/(3X2
/(3X2
/(3X2
/(3X2
bit 5
LCD
16
15
14
9
)
= 3V approx., if V
)
)
)
bit 4
2,4 backplanes
Frequency for
Table
109.2 Hz
218.4 Hz
6990 Hz
54.6 Hz
bit 3
8-3. The frequency shown in the
DD
bit 2
Frequency for
3 backplanes
> 3V). See
145.6 Hz
291.3 Hz
9320 Hz
72.8 Hz
bit 1
bit 0
MOTOROLA
Table
on reset
8-2.
State
TPG
8-9
8