at91sam7l128 ATMEL Corporation, at91sam7l128 Datasheet - Page 4

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

2. Block Diagram
Figure 2-1.
4
AT91SAM7L128/64 Preliminary
AT91SAM7L128/64 Block Diagram
SEG00-SEG39
COM0-COM9
PCK0-PCK2
IRQ0-IRQ1
JTAGSEL
VDDIO1
VDDIO1
NRSTB
PLLRC
CLKIN
FWUP
XOUT
NRST
DRXD
DTXD
DCD1
RXD0
SCK0
RXD1
SCK1
DSR1
DTR1
TXD0
RTS0
CTS0
TXD1
RTS1
CTS1
TDO
TMS
TCK
TST
TDI
FIQ
XIN
RI1
VDDIO1
32k RCOSC
OSC
BOD
POR
PLL
System Controller
SCAN
JTAG
2 MHz RCOSC
PIOA (26 IOs)
PIOB (24 IOs)
PIOC (30 IOs)
DBGU
RTC
Controller
Supply
WDT
AIC
PMC
PIT
LCD Controller
PDC
PDC
USART0
USART1
ICE
PDC
PDC
PDC
PDC
Embedded
Controller
Peripheral Bridge
Peripheral Data
Status
Flash
Abort
11 Channels
APB
Memory Controller
Controller
ARM7TDMI
Processor
Misalignment
Detection
Address
Decoder
PDC
PDC
PDC
PDC
PDC
Timer Counter
PWMC
ADC
TWI
SPI
TC0
TC1
TC2
ROM
2 Kbytes( Back-up)
4 Kbytes (Core)
Programming
SAM-BA
64/128 Kbytes
Fast Flash
Interface
SRAM
Flash
(12 Kbytes)
Regulator
Regulator
Charge
Voltage
Voltage
Pump
1.8 V
LCD
CAPP1
CAPM1
CAPP2
CAPM2
VDDINLCD
VDD3V6
VDDLCD
VDDIO2
VDDIO1
GND
VDDOUT
VDDCORE
VDDIO2
VDDCORE
ERASE
PGMRDY
PGMNVALID
PGMNOE
PGMCK
PGMM0-PGMM3
PGMD0-PGMD15
PGMNCMD
PGMEN0-PGMEN2
PWM0
PWM1
PWM2
PWM3
TCLK0
TCLK1
TCLK2
TIOA0
TIOB0
TIOA1
TIOB1
TIOA2
TIOB2
TWD
TWCK
NPCS0
NPCS1
NPCS2
NPCS3
MISO
MOSI
SPCK
ADTRG
AD0
AD1
AD2
AD3
ADVREF
6257AS–ATARM–28-Feb-08