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Z80189 Просмотр технического описания (PDF) - Zilog
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производитель
Z80189
GENERAL-PURPOSE EMBEDDED CONTROLLERS
Zilog
Z80189 Datasheet PDF : 107 Pages
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PRELIMINARY
16550 MIMIC TIMING
(Continued)
Z80189/Z8L189
G
ENERAL
-P
URPOSE
E
MBEDDED
C
ONTROLLERS
Table 7. Interrupt Timing RCVR FIFO Table
No Sym Parameter
Z8L189-20 MHz
Min
Max
Z80189-33 MHz
Min
Max
14 tSINT Delay from Stop to Set
Interrupt
2
2
15 tRINT Delay from /HRD
(RD RBR or RD LSR)
to Reset Interrupt
2
2
Units
phi cycles
phi cycles
/RD (MPU)
TxFIFO
HINTR
THRE
/WR (Host)
THR
/RD (Host)
11R
17
16
18
Figure 26. Interrupt Timing Transmitter FIFO
DS971890301
23
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