ADMCF340 datasheet(10/40 Pages) AD

10 / 40 page

REV. 0

ADMCF340

–10–

• SPORTs can receive and transmit an entire circular buffer of

data with only one overhead cycle per data-word. An interrupt

is generated after a data buffer transfer.

• SPORT0 has one pin, SCLK0, shared with SPORT1. Dur-

ing a boot phase (SPORT1 Boot Mode enabled by a bit in

the MODECTRL Register), the serial clock of SPORT1 is

externally available. The serial clock of SPORT0 is exter-

nally available when the SPORT1 is configured in UART

Mode.

• SPORT0 can be configured as SPI port (master mode only).

Refer to Table XI for more information. The clock phase and

polarity are programmable through the MODECTRL Register.

Refer to Table XI for pin configuration.

• SPORT0 has a multichannel interface to selectively receive

and transmit a 24-word or 32-word time division multiplexed

serial bitstream.

• SPORT1 is the default port for program/data memory boot

loading and for the development tools interface. The DT1/FL1

Pin can be configured as the SROM/E

2 prom reset signal.

The ADMCF340 is available in a 64-lead LQFP package.

PIN FUNCTION DESCRIPTION

Table I. Pin List

Pin Group

# of

Input/

Name

Pins

Output

Function

PWMPOL

PWM Polarity

PWMSR

PWM Switched

Reluctance Mode

RESET

Processor Reset Input

SPORT1

I/O

Serial Port 1 Pins

(DT1/FL1, DR1)

SPORT0

I/O

Serial Port 0 Pins

(DT0, DR0, RFS0,

TFS0, SCLK1/

SCLK0

CLKOUT

I/O

Processor Clock

Output

CLKIN, XTAL

I/O

External Clock or

Quart Crystal

Connection Point

PORTA0–PORTA8

I/O

Digital I/O Port Pins

PORTB0–PORTB15 16

I/O

Digital I/O Port Pins

AUX0–AUX1

Auxiliary PWM

Outputs

AH-CL

PWM Outputs

PWMTRIP

PWM Trip Signal

V1 to V3

ISENSE Inputs

ISENSE1 to ISENSE3

Analog Inputs

VAUX0-VAUX7

Auxiliary Analog Inputs

ICONST

ADC Constant

Current Source

VDD

Power Supply

GND

Ground

NOTES

1Multiplexed pins, individually selectable through PORTA_SELECT and

PORTA_DATA Registers.

2SCLK1/SCLK0 multiplexed signals. Selectable through MODECTRL

INTERRUPT OVERVIEW

The ADMCF340 can respond to 34 different interrupt sources

with minimal overhead, seven of which are internal DSP core

interrupts and 27 are from the motor control peripherals. The seven

DSP core interrupts are SPORT1 receive (or

IRQ0) and transmit

(or

IRQ1), SPORT0 receive and transmit, the internal timer,

and two software interrupts. The motor control peripheral

interrupts are the 25 programmable I/Os and two from the PWM

(PWMSYNC pulse and

PWMTRIP). All motor control interrupts

are multiplexed into the DSP core through the peripheral

IRQ2

interrupt. The interrupts are internally prioritized and individually

maskable. A detailed description of the entire interrupt system of

the ADMCF340 is presented later, following a more detailed

description of each peripheral block.

MEMORY MAP

The ADMCF340 has two distinct memory types: program

and data. In general, program memory contains user code and

coefficients, while the data memory is used to store variables and

data during program execution. Three kinds of program memory are

provided on the ADMCF340: RAM, ROM, and FLASH. The

motor control peripherals are memory mapped into a region of the

data memory space starting at 0x2000. The complete program and

data memory maps are given in Tables II and III, respectively.

Table II. Program Memory Map

Memory

Address Range

Type

Function

0x0000–0x002F

RAM

Internal Vector Table

0x0030–0x01FF

RAM

User Program Memory

0x0200–0x07FF

Reserved

0x0800–0x17FF

ROM

Reserved Program Memory

0x1800–0x1FFF

Reserved

0x2000–0x20FF

FLASH

User Program Memory

Sector 0

0x2100–0x21FF

FLASH

User Program Memory

Sector 1

0x2200–0x2FFF

FLASH

User Program Memory

Sector 2

0x3000–0x3FFF

Reserved

Table III. Data Memory Map

Memory

Address Range

Type

Function

0x0000–0x1FFF

Reserved

0x2000–0x20FF

Memory Mapped Registers

0x2100–0x37FF

Reserved

0x3800–0x39FF

RAM

User Data Memory

0x3A00–0x3BFF

RAM

Reserved

0x3C00–0x3FFF

Memory Mapped Registers

ADMCF340 датащи(PDF) 10 Page - Analog Devices

ADMCF340 датащи(HTML) 10 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

датащи скачать

ссылки URL