IA80C152 Datasheet, PDF (26/32 Pages) InnovASIC, Inc – UNIVERSAL COMMUNICATIONS CONTROLLER

Page 26 of 32
IA80C152
Preliminary Data Sheet
UNIVERSAL COMMUNICATIONS CONTROLLER
Table 11: Local Serial Channel Timing - Shift Register Mode
Symbol
TXLXL
TQVXH
TXHQX
TXHDX
TXHDV
Parameter
Serial Port Clock Cycle
Time
Output Data Setup to
Clock Rising Edge
Output Data Hold After
Clock Rising Edge
Input Data Hold After
Clock Rising Edge
Clock Rising Edge to
Input Data Valid
16.5 MHz
Variable Oscillator
Min
Max
Min
Max
12TCLCL
Figure 10: Shift Register Mode Timing Waveforms
INSTRUCTION _{| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |}
ALE
CLOCK
TXLXL
TQVXH
TXHQX
OUTPUT_DATA
0
|_________|
^|
WRITE TO SBUF
1
2
3
TXHDX
TXHDV
INPUT_DATA
VALID
VALID
VALID
VALID
|____________|
^|
CLEAR R1
4
VALID
5
VALID
6
VALID
7
^|
SET T1
VALID
^|
SET R1
Units
ns
ns
ns
ns
ns
Copyright © 2000
innovASIC
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