IA80C152 Datasheet, PDF (28/32 Pages) InnovASIC, Inc – UNIVERSAL COMMUNICATIONS CONTROLLER

Page 28 of 32
IA80C152
Preliminary Data Sheet
UNIVERSAL COMMUNICATIONS CONTROLLER
Table 13: Global Serical Port Timings - External Clock
Symbol
1/ECBT
ECH
ECL
ECRT
ECFT
ECDVT
ECDHT
ECDSR
ECDHR
Parameter
GSC Frequency with an
External Clock
External Clock High
External Clock Low
External Clock Rise
Time
External Clock Fall
Time
External Clock to Data
Valid Out - Transmit
(To External Clock
Negative Edge)
External Clock to Data
Hold - Transmit
(To External Clock
Negative Edge)
External Clock to Data
Set-up - Receiver
(To External Clock
Positive Edge)
External Clock to Data
Hold - Receiver
(To External Clock
Positive Edge)
16.5 MHz
Min
Max
2.4
Variable Oscillator
Min
Max
0.009
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Figure 13: GSC Timings (External Clock)
EXTERNAL_CLOCK
ECBT
ECL
ECH
TRANSMIT_DATA
ECDHT
EXTERNAL_CLOCK
ECBT
ECDVT
RECEIVE_DATA
ECDHR
ECDSR
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