XE5690SM-ITR Просмотр технического описания (PDF) - Xecom

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XE5690SM-ITR

Compact, Low-Cost Global Embedded Modem

Xecom 

XE5690SM User-Registers

The registers described below are controlled by the AT:U command and read with the AT:R command. The

user Registers that control the modem’s country configuration are described elsewhere in this data sheet.

U65 Modem Power Down: U65 permits the

XE5690SM to enter power down mode.

The modem can only be awakened by

applying an active Reset signal to pin 4.

AT:U65,2008 - Select Powerdown Mode

U70 Modem Interrupt Register: U70 allows

selects the events that will activate the

hardware interrupt line, Pin 3. It also stores

the Interrupt status. The interrupts are

cleared after this register is read.

Bit 15- hardware Escape Pin

Bit 14- Reserved

Bit 13- enables on line escape sequence*

Bit 12- Caller ID activates interrupt

Bit 11 - Overcurrent detect initaites interupt

Bit 10- Interrupt on Handset Interupt*

Bit 9 - Activate interrupt on ring detect*

Bit 8 - Activate interrupt on carrier detect*

Bit 7 - Reserved

Bit 6 - Reserved

Bit 5 - Reserved

Bit 4 - Indicates Caller ID Detected

Bit 3 - Indicates Overcurrent Detection

Bit 2 - Indicates Handset Interrupt

Bit 1 - Indicates Ring Detection

Bit 0 - Indicates Carrier Detected

U77 Auto Disconnect on Handset Interrupt -

U77 bit 11 allows the user to configure the

XE5690SM to automatically disconnect on a

Handset Interrupt condition.

Bits 12-15 - Reserved (Bit 14 active)

Bit 11 - When set the modem automatically

disconnects when on a Handset

Interrupt condition. This bit is reset

in the default state.

Bits 0-10 - Reserved - (bits 2, 3, 4, and 5 are

normally set.)

U78 Handset Interrupt control - U78 controls

when the Handset Interrupt functions will be

active.

Bits 14 -15 -

00 - Handset Interrupt disabled*

01 - Handset Interrupt disabled during

dialing

10 - Handset Interrupt disabled from

start of dialing to expiration of

Handset Interrupt timer set by

bits 0 to 7 of this register

11 - Handset Interrupt disabled until

modem negotiations are complete

Bits 8-13 - reserved

Bits 0-7 - Sets Handset Interrupt timer in

500 millisecond increments.

(default = 0)

XECOM

(18)

XE5690SM

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