Digi NS7520 Manual de Usario

Lee a continuación 📖 el manual en español para Digi NS7520 (68 páginas) en la categoría No categorizado. Esta guía fue útil para 4 personas y fue valorada con 4.5 estrellas en promedio por 2 usuarios

Página 1/68
NS7520 Data Sheet
The Digi NS7520 is a high-performance, highly integrated, 32-bit system-on-a chip ASIC designed
for use in intelligent networked devices and Internet appliances. The NS7520 is based on the
standard architecture in the NET+ARM family of devices.
The NS7520 can support most any networking scenario,
and includes a 10/100 BaseT Ethernet MAC and two
independent serial ports (each of which can run in UART
or SPI mode).
The CPU is an ARM7TDMI 32-bit RISC processor core with
a rich complement of support peripherals and memory
controllers for various types of memory (including Flash,
SDRAM, EEPROM, and others), programmable timers, a
13-channel DMA controller, an external bus expansion
module, and 16 general-purpose input/output (GPIO)
pins.
NET+ARM is the hardware foundation for the
NET+Works™ family of integrated hardware and software solutions for device networking. These
comprehensive platforms include drivers, popular operating systems, networking software,
development tools, APIs, and complete development boards.
Contents
iii
NS7520 Overview........................................................................... 1
Key Features................................................................................ 2
Operating frequency ...................................................................... 3
Packaging and pinout ..................................................................... 4
Pinout detail tables ....................................................................... 6
System Bus interface............................................................. 6
Chip select controller........................................................... 10
Ethernet interface MAC......................................................... 11
“No connect” pins ............................................................... 13
General Purpose I/O ............................................................ 13
System clock and reset ......................................................... 15
System mode (test support) ................................................... 16
JTAG test ......................................................................... 16
Power supply ..................................................................... 17
NS7520 modules...........................................................................18
CPU module ...................................................................... 18
GEN module ...................................................................... 18
System (SYS) module............................................................ 18
BBus module......................................................................19
Memory module (MEM).......................................................... 19
DMA controller ................................................................... 19
Ethernet controller..............................................................19
Serial controller .................................................................21
NS7520 bootstrap initialization.........................................................22
JTAG............................................................................... 22
ARM Debug........................................................................ 22
DC characteristics and other operating specifications.............................. 23
Absolute maximum ratings.....................................................24
Pad pullup and pulldown characteristics ....................................24
AC characteristics ........................................................................25
AC electrical specifications.................................................... 25
Oscillator Characteristics................................................................ 27
Timing Diagrams .......................................................................... 28
Timing_Specifications........................................................... 28
Reset_timing .....................................................................29
SRAM timing ...................................................................... 30
SDRAM timing .................................................................... 40
FP DRAM timing .................................................................. 46
Ethernet timing ..................................................................53
JTAG timing ...................................................................... 55
External DMA timing ............................................................ 57
Serial internal/external timing................................................ 59
GPIO timing.......................................................................61

Especificaciones del producto

Marca: Digi
Categoría: No categorizado
Modelo: NS7520

¿Necesitas ayuda?

Si necesitas ayuda con Digi NS7520 haz una pregunta a continuación y otros usuarios te responderán




No categorizado Digi Manuales

No categorizado Manuales

Últimos No categorizado Manuales