BT8376EPF datasheet(135/323 Pages) CONEXANT

135 / 323 page

Bt8370/8375/8376

3.0 Registers

Fully Integrated T1/E1 Framer and Line Interface

3.4 Interrupt Status Registers

N8370DSE

Conexant

3-17

005—Alarm 2 Interrupt Status (ISR6)

All events reported in ISR6 are from dual-edge sources, except the 1-second timer [ONESEC] and Transmit

Pulse Density Violation [TPDV]. Any transition of real-time status in the Alarm 2 Status register [ALM2;

addr 048] forces the corresponding ISR6 status bit active (high). Active-high status is latched and held

according to the LATCH_ALM bit [addr 046]. Each event triggers an interrupt if the corresponding IER6 bit is

enabled [addr 00D].

LOOPDN

Loss/Recovery of Inband Loopback Deactivate Code—Reports any change in real-time status

of inband loopback deactivate code detector.

0 = no event

1 = LOOPDN code transition

LOOPUP

Loss/Recovery of Inband Loopback Activate Code—Reports any change in real-time status of

inband loopback activate code detector.

0 = no event

1 = LOOPUP code transition

TPDV

Transmit PDV Monitor/Enforcer—Applicable only if TZCS [addr 071] enables PDV

enforcement. When enabled, TPDV is latched active if 1 or more PDV-enforced 1s were

output to meet ANSI T1.403 minimum pulse density requirements.

0 = no error

1 = PDV-enforced 1

TSHORT

Loss/Recovery of Transmit Short Circuit—Reports any change in real-time status of transmit

line driver's short circuit detector.

0 = no alarm

1 = short circuit transition

TLOC

Loss/Recovery of Transmit Clock—Reports any change in real-time status of TCKI clock

monitor.

0 = no alarm

1 = clock monitor transition

TLOF

Loss/Recovery of Transmit Frame Alignment—Reports any change in real-time status of

transmit framer's basic alignment.

0 = no alarm

1 = transmit framer transition

ONESEC

1-second Timer Event—ONESEC is derived from the internal 1-second timer or the rising

edge of ONESEC input signal, according to the selected I/O mode [PIO; addr 018].

0 = no timer event

1 = ONESEC timer expired or rising edge of ONESEC input

LOOPDN

LOOPUP

TPDV

TSHORT

TLOC

—

TLOF

ONESEC

BT8376EPF Datasheet(PDF) 135 Page - Synaptics Incorporated.

BT8376EPF Datasheet(HTML) 135 Page - Synaptics Incorporated.

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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL