參數(shù)資料
型號： Z86L72
廠商： ZiLOG, Inc.
英文描述： IR MICROCONTROLLER
中文描述： 紅外單片機(jī)
文件頁數(shù)： 24/71頁
文件大?。?/td> 364K
代理商： Z86L72
Z86C72/C92/L72/L92
IR Microcontroller
Zilog
6-24
P R E L I M I N A R Y
DS97LVO0900
PIN FUNCTIONS
(Continued)
Port 1
(P17-P10). Port 1 is a multiplexed Address (A7-A0)
and Data (D7-D0), CMOS compatible port. Port 1 is dedi-
cated to the Zilog ZBus
-compatible memory interface.
The operations of Port 1 are supported by the Address
Strobe (/AS) and Data Strobe (/DS) lines, and by the
Read/Write (R//W) and Data Memory (/DM) control lines.
Data memory read/write operations are done through this
port (Figure 12). If more than 256 external locations are re-
quired, Port 0 outputs the additional lines.
Port 1 can be placed in the high-impedance state along
with Port 0, /AS, /DS, and R//W, allowing the Z86L/CX2 to
share common resources in multiprocessor and DMA ap-
plications. Port1 can also be configured for standard port
output mode.
Figure 12. Port 1 Configuration
Port 1
(I/O or AD7 - AD0)
Optional
Handshake Controls
/DAV1 and RDY1
(P33 and P34)
Z86LXX
MCU
8
OEN
Out
In
PAD
Auto Latch
R
≈
500 K
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