SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 492

• Manufacturer Part Number: SAM7L128
• Manufacturer: Atmel Corporation

Specifications of SAM7L128

• Flash (kbytes): 128 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 36 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 80
• Ext Interrupts: 80
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Segment Lcd: 40
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 460
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 6
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.8 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

34.2
Figure 34-1. LCD Macrocell Block Diagram
492
U
A
P
B
B
S
SCLK
Block Diagram
AT91SAM7L128/64 Preliminary
SLCDC_MEM 18-19
SLCDC_MEM 0-1
User Frame Buffer
SLCDC_IMR
SLCDC_IER
SLCDC_IDR
SLCDC_ISR
SLCDC_MR
SLCDC_DR
SLCDC_CR
SLCDC_SR
SLCDC_FRR
COMSEL, LPMODE, BIAS
BUFFTIME, LCDBLKFREQ
LCDBLKFREQ, DISPMODE
BIAS,BUFFTIME, LPMODE
COMSEL, SEGSEL
Generation
ENABLE, DISABLE, SWRST
ENA
IT
Display Frame
Buffer
DISABLE
ENDFRAME
DIV
COMSEL
PRESC
On-chip resistor ladder for 1/3 bias
V
/2
LCD
MUX
Com./Rate Uniformizer
40 x
10:1
Divide by 1 to 8
Multiplexer
Prescaler
R
Clock
Timing Generation
DISPMODE, SEGSEL
Buffer_on
R
Waveform
LCD SEG
Generator
R
/16
LCD COM
Waveform
Generator
GND
clk
on
2/3 1/3
slcdc
On-chip resistor ladder for 1/4 and 1/2 bias
V
LCD
3/4 1/2 1/4
Analog
Buffers
ENDFRAME
Buffer_on
Decoder
Output
BIAS
R
1/4 V
1/3 V
1/2 V
2/3 V
3/4 V
R
LCD
LCD
LCD
LCD
LCD
R
R
Analog
Switch
Array
GND
6257A–ATARM–20-Feb-08
SEG35
SEG36
SEG37
SEG38
SEG39
COM0
COM1
COM8
COM9
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5