參數(shù)資料
型號: Z86E31
廠商: ZiLOG, Inc.
英文描述: Z8 2K OTP Microcontroller( Z8系列2k ROM一次可編程微控制器)
中文描述: Z8 2K檢察官辦公室的微控制器(Z8系列2k光盤一次可編程微控制器)
文件頁數(shù): 27/64頁
文件大小: 391K
代理商: Z86E31
Z86E30/E31/E40
Zilog
Z8 4K OTP Microcontroller
DS97Z8X0502
P R E L I M I N A R Y
27
1
Port 2
(P27–P20). Port 2 is an 8-bit, bidirectional, CMOS-
compatible I/O port. These eight I/O lines can be config-
ured under software control as an input or output, indepen-
dently. All input buffers are Schmitt-triggered. Bits pro-
grammed as outputs can be globally programmed as
either push-pull or open-drain. Low EMI output buffers can
be globally programmed by the software. When used as an
I/O port, Port 2 can be placed under handshake control.
In Handshake Mode, Port 3 lines P31 and P36 are used as
handshake control lines. The handshake direction is deter-
mined by the configuration (input or output) assigned to bit
7 of Port 2 (Figure 20).
Figure 20. Port 2 Configuration
OEN
Out
In
PAD
Port 2 (I/O)
Handshake Controls
DAV2 and RDY2
(P31 and P36)
Z86E40
MCU
TTL Level Shifter
Auto Latch
R
500 K
Open-Drain
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