XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 14

• Manufacturer Part Number: XRT94L43IB-F
• Description: IC MAPPER SONET/SDH OC12 516BGA
• Manufacturer: Exar Corporation

Specifications of XRT94L43IB-F

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 2.5V, 3.3V
• Package / Case: 516-BBGA
• Mounting Type: Surface Mount
• Product: Mapper
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MICROPROCESSOR INTERFACE
REV. 1.0.2
PIN DESCRIPTIONS - DIRECT ADDRESSING
AE22
AB23
AD15
P
W21
M24
M22
M25
U22
A23
A25
H24
V26
R24
P26
L25
L23
L22
F24
T26
L26
IN
#
PCLK
PTYPE_0
PTYPE_1
PTYPE_2
PADDR_0
PADDR_1
PADDR_2
PADDR_3
PADDR_4
PADDR_5
PADDR_6
PADDR_7
PADDR_8
PADDR_9
PADDR_10
PADDR_11
PADDR_12
PADDR_13
PADDR_14
PADDR_15
S
IGNAL
N
AME
I/O
I
I
I
S
T
IGNAL
TTL
TTL
TTL
YPE
Microprocessor Interface Clock Input:
This clock input signal is only used if the Microprocessor Interface has been
configured to operate in one of the Synchronous Modes (e.g., Power PC
403 Mode). If the Microprocessor Interface is configured to operate in one
of these modes, then it will use this clock signal to do the following.
•
•
N
Microprocessor Type Select input:
These three input pins are used to configure the Microprocessor Interface
block to readily support a wide variety of Microprocessor Interfaces. The
relationship between the settings of these input pins and the corresponding
Microprocessor Interface configuration is presented below.
PTYPE[2:0]
Address Bus Input pins (Microprocessor Interface):
These pins permit the Microprocessor to identify on-chip registers and
Buffer/Memory locations (within the XRT94L43) whenever it performs
READ and WRITE operations with the XRT94L43.
OTES
To sample the CS, WR/R/W, A[15:0], D[7:0], RD/DS and DBEN input
pins, and
To update the state of the D[7:0] and the RDY/DTACK output signals.
000
l001
010
011
100
101
1. The Microprocessor Interface can work with
2. This pin is inactive if the user has configured the Microprocessor
:
ranging up to 66MHz.
Interface to operate in either the Intel-Asynchronous or the
Motorola-Asynchronous Modes. In this case, the user should tie
this pin to GND.
8
Microprocessor Interface Mode
Motorola - Asynchronous Mode (Motorola 68k)
Intel I960
Intel - Asynchronous Mode
Intel X86
IDT3051/52 (MIPS)
Power PC 403 Mode
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
D
ESCRIPTION
µ
PCLK frequencies
XRT94L43