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Z86C34 датащи(PDF) 34 Page - Zilog, Inc.

номер детали Z86C34
подробное описание детали  CMOS Z8 MCUs WITH ASCI UART OFFER EFFICIENT, COST-EFFECTIVE DESIGN FLEXIBILITY
PDF  70 Pages
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производитель  ZILOG [Zilog, Inc.]
домашняя страница  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

Z86C34 датащи(HTML) 34 Page - Zilog, Inc.

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Z86C34/C35/C36/C44/C45/C46
CMOS Z8® MCUs with ASCI UART
ZiLOG
34
P R E L I M I N A R Y
DS007601-Z8X0499
FUNCTIONAL DESCRIPTION (Continued)
Interrupts.
The Z8 features six different interrupts from six
different sources. These interrupts are maskable, prioritized
(Figure 23) and the six sources are divided as follows: four
sources are claimed by Port 3 lines P33–P30, and two in
counter/timers (Table 11). The Interrupt Mask Register glo-
bally or individually enables or disables the six interrupt re-
quests.
Figure 22. Counter/Timer Block Diagram
PRE0
Initial Value
Register
T0
Initial Value
Register
T0
Current Value
Register
6-Bit
Down
Counter
8-bit
Down
Counter
16
÷4
6-Bit
Down
Counter
8-Bit
Down
Counter
PRE1
Initial Value
Register
T1
Initial Value
Register
T1
Current Value
Register
2
Clock
Logic
IRQ4
T
P36
IRQ5
Internal Data Bus
Write
Write
Read
Internal Clock
Gated Clock
Triggered Clock
TIN P31
Write
Write
Read
Internal Data Bus
External Clock
Internal
Clock
D0 (SMR)
÷4
÷2
OSC
D1 (SMR)
OUT



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