AT91SAM7L128-CU Atmel, AT91SAM7L128-CU Datasheet - Page 213

• Manufacturer Part Number: AT91SAM7L128-CU
• Description: MCU ARM7 128K HS FLASH 144-LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7L128-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: 128KB (128K 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

24. Clock Generator
24.1
6257A–ATARM–20-Feb-08
Overview
The Clock Generator is made up of one PLL, one fast RC oscillator, one slow RC oscillator and
one 32,768 Hz Crystal Oscillator.
It provides the following clocks:
The Clock Generator User Interface is embedded within the Power Management Controller and
is described in
the Clock Generator registers are named CKGR_.
Figure 24-1. Clock Generator Block Diagram
• SLCK, the Slow Clock, which is the only permanent clock within the system (except in OFF
• MAINCK is the output of the Main Clock selection: either CLKIN (external clock) or 2 MHz
• PLLCK is the output of the Divider and PLL block
mode)
Fast RC Oscillator
Section 25.9 ”Power Management Controller (PMC) User
(Supply Controller)
PLLRC
CLKIN
XOUT
XIN
XTALSEL
Embedded
Xtal 32 kHz
Management
Embedded
32 kHz RC
2 MHz RC
Oscillator
Status
Oscillator
Oscillator
Controller
SLCK
Power
AT91SAM7L128/64 Preliminary
Clock Generator
PLL and
Control
Divider
PLL Clock
PLLCK
Slow Clock
SLCK
MCKSEL
Main Clock
MAINCK
Interface”. However,
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