at91sam7l128 ATMEL Corporation, at91sam7l128 Datasheet - Page 43

• Manufacturer Part Number: at91sam7l128
• Description: At91 Arm Thumb-based Microcontroller
• Manufacturer: ATMEL Corporation

10.12 Analog-to-Digital Converter
10.13 Segment LCD Controller
6257AS–ATARM–28-Feb-08
The Segment LCD Controller/driver is intended for monochrome passive liquid crystal display
(LCD) with up to 10 common terminals and up to 40 segment terminals.
• Independent channel programming
• 4-channel ADC supplied by the internal voltage regulator
• 10-bit 460 Ksamples/sec. or 8-bit 660 Ksamples/sec. Successive Approximation Register
• ±2 LSB Integral Non Linearity, ±1 LSB Differential Non Linearity
• Integrated 4-to-1 multiplexer
• External voltage reference for better accuracy on low voltage inputs
• Individual enable and disable of each channel
• Multiple trigger sources
• Sleep Mode and conversion sequencer
• 40 segments and 10 common terminals display capacity
• Support static, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9 and 1/10 Duty
• Support static, 1/2, 1/3, 1/4 Bias
• Power-save mode display
• Software-selectable low-power waveform capability
• Flexible frame frequency selection
• Segment and common pins, not needed for driving the display, can be used as ordinary I/O
• Switching time enhancement internal buffers
ADC
pins
– Independent enable/disable commands
– Independent clock selection
– Independent period and duty cycle, with double buffering
– Programmable selection of the output waveform polarity
– Programmable center or left aligned output waveform
– Hardware or software trigger
– External trigger pin
– Timer Counter 0 to 2 outputs TIOA0 to TIOA2 trigger
– Automatic wakeup on trigger and back to sleep mode after conversions of all
enabled channels
AT91SAM7L128/64 Preliminary
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