SAM7S128 Atmel Corporation, SAM7S128 Datasheet - Page 116

• Manufacturer Part Number: SAM7S128
• Manufacturer: Atmel Corporation

Specifications of SAM7S128

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 32
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• 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): 3.0 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:
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•
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