BT8376EPF datasheet(111/323 Pages) CONEXANT

Part #	BT8376EPF

Description	single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces

PDF	323 Pages

Scroll/Zoom	100%

Manufacturer	CONEXANT [Synaptics Incorporated.]

Direct Link	https://www.synaptics.com/

Logo

111 / 323 page

Bt8370/8375/8376

2.0 Circuit Description

Fully Integrated T1/E1 Framer and Line Interface

2.10 Microprocessor Interface

N8370DSE

Conexant

2-83

2.10 Microprocessor Interface

The Microprocessor Interface (MPU) provides the capability to configure the

Bt8370, read status registers and counters, and respond to interrupts (see

Figure 2-48). The interface supports both the Intel 8051 and Motorola 68000-type

processors. In the Intel mode, the address and data are multiplexed; in the

Motorola mode, the address and data are separate pins. Both synchronous and

asynchronous Read and Write modes are supported. The synchronous mode is

optimized for Motorola 68000-type processors with a maximum clock rate of 36

MHz. The asynchronous mode runs internally at 32 MHz, which limits the

processor speed to 16 MHz for 8051 processors, and 30 MHz for 68302

processors.

The microprocessor interface consists of the following pins: MCLK, MOTO*,

SYNCMD, CS*, AS*, DS*, R/W*, DTACK*, AD[7:0], A[8:0], INTR*,

CLKMD, ONESEC, RST*. (A detailed description of the MPU pins is provided

in Table 1-1, Hardware Signal Definitions.)

Figure 2-48. Microprocessor Interface Block Diagram

MCLK

MOTO*

SYNCMD

CLKMD

CS*

AS*

DS*

R/W*

DTACK*

AD[7:0]

A[8:0]

INTR*

ONESEC

RST*

BT8376EPF Datasheet(PDF) 111 Page - Synaptics Incorporated.