S i M 3 L 1 x x
42
Rev 1.1
4.4. Integrated LCD Controller (LCD0)
SiM3L1xx devices contain an LCD segment driver and on-chip bias generation that supports static, 2-mux, 3-mux
and 4-mux LCDs with 1/2 or 1/3 bias. The on-chip charge pump with programmable output voltage allows software
contrast control which is independent of the supply voltage. LCD timing is derived from the RTC timer clock
(RTC0TCLK) to allow precise control over the refresh rate.
The SiM3L1xx devices use registers to store the enabled/disabled state of individual LCD segments. All LCD
waveforms are generated on-chip based on the contents of these registers with flexible waveform control to reduce
power consumption wherever possible. An LCD blinking function is also supported on a subset of LCD segments.
The LCD0 module has the following features:
Up to 40 segment pins and 4 common pins.
Supports LCDs with 1/2 or 1/3 bias.
Includes an on-chip charge pump with programmable output that allows firmware to control the contrast
independent of the supply voltage.
The RTC timer clock (RTC0TCLK) determines the LCD timing and refresh rate.
All LCD waveforms are generated on-chip based on the contents of the LCD0 registers with flexible
waveform control.
LCD segments can be placed in a discharge state for a configurable number of RTC clock cycles before
switching to the next state to reduce power consumption due to display loading.
Includes a VBAT monitor that can serve as a wakeup source for Power Mode 8.
Supports four hardware auto-contrast modes: bypass, constant, minimum, and auto-bypass.
Supports hardware blinking for up to 8 segments.
Summary of Contents for SiM3L1xx
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Page 62: ...SiM3L1xx 62 Rev 1 1 6 2 SiM3L1x6 Pin Definitions Figure 6 2 SiM3L1x6 GQ Pinout ...
Page 63: ...SiM3L1xx Rev 1 1 63 Figure 6 3 SiM3L1x6 GM Pinout ...
Page 69: ...SiM3L1xx Rev 1 1 69 6 3 SiM3L1x4 Pin Definitions Figure 6 4 SiM3L1x4 GM Pinout ...
Page 74: ...SiM3L1xx 74 Rev 1 1 6 4 TQFP 80 Package Specifications Figure 6 5 TQFP 80 Package Drawing ...
Page 81: ...SiM3L1xx Rev 1 1 81 6 6 TQFP 64 Package Specifications Figure 6 9 TQFP 64 Package Drawing ...
Page 89: ...SiM3L1xx Rev 1 1 89 Figure 7 3 SiM3L1x4 GM Revision Information ...