BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 111
BT8375
Manufacturer Part Number
BT8375
Description
single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
Manufacturer
CONEXANT [Conexant Systems, Inc]
Datasheet
1.BT8375.pdf
(323 pages)
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Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
N8370DSE
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
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.
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
Figure 2-48. Microprocessor Interface Block Diagram
Table 1-1, Hardware Signal
The microprocessor interface consists of the following pins: MCLK, MOTO*,
2-48). The interface supports both the Intel 8051 and Motorola 68000-type
Conexant
SYNCMD
ONESEC
DTACK*
Definitions.)
CLKMD
MOTO*
AD[7:0]
INTR*
MCLK
A[8:0]
RST*
R/W*
CS*
DS*
AS*
2.10 Microprocessor Interface
2.0 Circuit Description
2-83
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