MX98745 Ver la hoja de datos (PDF) - Macronix International
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MX98745 Datasheet PDF : 36 Pages
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MX98745
5.0 PIN DESCRIPTION
A. MX Data Transceiver (Am78965/Am78966 or MC68836), 98 pins
PAD #
Name
I/O
24-28
TDAT[7:1][0:4] O,
9-13
TTL
155-159
142-146
128-132
113-117
98-102
30
LSCLK
I,
TTL
18-22
RDAT[7:1][0:4] I,
4-8
TTL
150-154
137-141
122-126
107-111
92-96
15,2
RSCLK[7:0]
I,
148,134
TTL
118,104
90,42
16,3,
SIGDET[7:1]
I,
149,135,
TTL
119,105,
91
31
Monitor
I,
TTL
Description
Transmit Data. These five outputs are 5B encoded transmit data sym
bols, driven at the rising edge of LSCLK.
TDAT4 is the Most Significant Bit.
Local Synchrnous Clock. This pin supplies the frequency reference to
the MX98745 within same HUB. It should be driven by a crystal-
controlled 25M clock source.
Receive Data. These 5 bit parallel data symbol from transceiver are
latched by the rising edge of RSCLK of each port.
RDAT4 is the Most Significant Bit.
Recovered Symbol Clock. This is a 25 MHz clock, which is derived
from the clock synchronization PLL circuit.
Signal Detect. This signal indicates that the received signal is above
the detection threshold and will be used for the link test state machine.
Monitor Mode. Internal Pulldown. When this pin is set to one, LED
display pins LED[9:0] will be changed to monitor mode.
Table 5-1 Pin Description for XRCII
P/N:PM0427
REV. 1.4, JUL. 8, 1998
4
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