AT91SAM7L64-CU Atmel, AT91SAM7L64-CU Datasheet - Page 503

• Manufacturer Part Number: AT91SAM7L64-CU
• Description: MCU ARM7 64K HS FLASH 144-LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7L64-CU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 36MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 80
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 6K x 8
• Voltage - Supply (vcc/vdd): 1.55 V ~ 1.8 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LFBGA
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 6 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 36 MHz
• Number Of Programmable I/os: 80
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7L-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• For Use With: AT91SAM7L-STK - KIT EVAL FOR AT91SAM7LAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

34.5.7.2
6257A–ATARM–20-Feb-08
Software Reset
Figure 34-10. Disabling Sequence
When the LCD software reset command is activated during a frame it is immediately taken into
account and all commons and segments are tied to ground.
Note that in the case of a software reset, the disable interrupt is not asserted.
Figure 34-11. Software Reset
End of Frame Interrupt
Disable Command
End Of Frame Interrupt
Disable Interrupt
SW Reset Command
-V
GND
V
-1/3
LCD
LCD
1/3
-V
Common
GND
V
ENA bit
-1/3
LCD
LCD
1/3
Common
Disable Example for Three Commons
AT91SAM7L128/64 Preliminary
SW Reset Example for Three Commons
The disable command is activated
The SW reset command is activated
The common is immediatly tied to ground
The command is taken into account
The common is tied to ground
The SLCDC is really disabled
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