RS8953 Conexant Systems, Inc., RS8953 Datasheet - Page 33

• Manufacturer Part Number: RS8953
• Description: High-bit-rate Digital Subscriber Line (hdsl) Channel unit
• Manufacturer: Conexant Systems, Inc.

Figure 3-1. MPU Bus Control Logic
N8953BDSB
MPUSEL
WR*
RD*
CS*
3.0 Circuit Descriptions
3.1 MPU Interface
The Microprocessor Unit (MPU) interface consists of an 8-bit parallel
multiplexed address-data bus, an associated bus control signal, and a maskable
interrupt request output, as illustrated in
interface is compatible with 8-bit processors running at bus cycle speeds up to
16 MHz. Systems that use 16 or 32-bit processors can add an external address
buffer and data transceiver to connect the RS8953B. Faster bus speeds require
external wait-state insertion logic.
Conexant
3
AD[7:0]
ALE
Figure 3-1
and
Address
To Registers
From Registers
Read Strobe
Write Strobe
Figure
3-2. The MPU
3-1