SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 116

• 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

Coprocessor Interface
4.5
4.5.1
4-12
Connecting coprocessors
Connecting a single coprocessor
A coprocessor in an ARM7TDMI processor system must have 32-bit connections to:
•
•
•
The coprocessor can optionally have connections to:
•
•
This section describes:
•
•
An example of how to connect:
•
•
the instruction stream from memory
data written by the core, MCR
data read by the core, MRC.
data written from memory, LDC
data read to memory, STC.
Connecting a single coprocessor on page 4-12
Connecting multiple coprocessors on page 4-13.
a coprocessor into an ARM7TDMI processor system if you are using a
bidirectional bus is shown in Figure 4-5
a coprocessor into an ARM7TDMI processor system if you are using a
unidirectional bus is shown in Figure 4-6 on page 4-13.
Copyright © 1994-2001. All rights reserved.
Figure 4-5 Coprocessor connections with bidirectional bus
ARM core
Coprocessor
D[31:0]
ARM DDI 0029G
CPDRIVE
Memory
system