參數(shù)資料
型號(hào)： Z86L70
廠商： ZiLOG, Inc.
英文描述： IR/Low-Voltage Microcontroller
中文描述： 紅外/低電壓微控制器
文件頁數(shù)： 15/61頁
文件大小： 349K
代理商： Z86L70
Z86L70/71/75/C71
Zilog
IR/Low-Voltage Microcontroller
DS97LVO0500
P R E L I M I N A R Y
1-15
1
Port 2
(P27-P20). Port 2 is an 8-bit, bidirectional, CMOS-
compatible I/O port. These eight I/O lines can be indepen-
dently configured under software control as inputs or out-
puts. Port 2 is always available for I/O operation. A mask
option is available to connect eight 200 KOhms (
±
50%)
pull-up resistors on this port. Bits programmed as outputs
are globally programmed as either push-pull or open-
drain. The Z8
wakes up with the eight bits of Port 2 config-
ured as inputs with open-drain outputs.
Port 2 also has an 8-bit input OR and an AND gate which
can be used to wake up the part from STOP Mode (Figure
33). P20 can be programmed to access the edge selection
circuitry (Figure 9).
Figure 9. Port 2 Configuration
Open-Drain
OEN
Out
In
PAD
Port 2 (I/O)
Z86LXX
MCU
VCC
Mask
Option
200 K
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