XRT79L71_10 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'XRT79L71_10' PDF : 609 Pages View PDF
PRELIMINARY
XRT79L71
REV. P2.0.0
1-CHANNEL DS3/E3 CLEAR-CHANNEL FRAMERLIU COMBO - CC/HDLC ARCHITECTURE
Intel i960 Mode
IDT3051/52 (MIPS) Mode
Power PC 403 Mode
Of these various "Microprocessor Interface" Modes, the two most popular modes are the "Intel-Asynchronous"
and the "Power PC 403" Modes. Each of these modes will be discussed in considerable detail in the Sections
below.
THE PINS OF THE MICROPROCESSOR INTERFACE
Table 1a presents a list and a brief description of each of the pins that make up the Microprocessor Interface
block, within the XRT79L71.
PIN NAME
A[14:0]
D[7:0]
Table 3: List and Brief Description of the Microprocessor Interface Pins
PIN/BALL
NUMBER
TYPE
DESCRIPTION
E13
I Address Bus Input Pins:
E14
This input pins permit the Microprocessor to identify on-chip registers and
E15
Buffer/Memory locations (within the XRT79L71) whenever it performs READ
E16
and WRITE operations with the XRT79L71.
D16
D15
C16
G13
G14
G15
G16
F13
F14
F15
F16
A15
I/O Bi-Directional Data Bus pins:
B14
This pins are used to drive and receive data over the bi-directional data bus,
C13
whenever the Microprocessor performs READ or WRITE operations with the
D12
Microprocessor Interface of the XRT79L71.
A14
B13
C12
D11
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