參數(shù)資料
型號: HD404829R
廠商: Hitachi,Ltd.
英文描述: AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動電路的微計算機)
中文描述: 由于微機安裝有LCD控制器/驅(qū)動電路(帶液晶控制/驅(qū)動電路的微計算機)
文件頁數(shù): 56/147頁
文件大?。?/td> 519K
代理商: HD404829R
HD404829R Series
56
Pull-Up MOS Transistor Control:
A program-controlled pull-up MOS transistor is provided for each
input/output pin other than input-only pins D
10
and D
11
. The on/off status of all these transistors is
controlled by bit 3 (MIS3) of the miscellaneous register (MIS: $00C), and the on/off status of an individual
transistor can also be controlled by the port data register (PDR) of the corresponding pin—enabling on/off
control of that pin alone (table 17 and figure 41).
The on/off status of each transistor and the peripheral function mode of each pin can be set independently.
How to Deal with Unused I/O Pins:
I/O pins that are not needed by the user system (floating) must be
connected to V
CC
to prevent LSI malfunctions due to noise. These pins must either be pulled up to V
CC
by
their pull-up MOS transistors or by resistors of about 100 k
.
Bit
Initial value
Read/Write
Bit name
3
0
W
MIS3
2
0
W
MIS2
0
0
W
MIS0
1
0
W
MIS1
MIS2
CMOS buffer
on/off selection
for pin R2
3
/SO
On
Miscellaneous register (MIS: $00C)
0
1
Off
Refer to figure 18 in the
operation modes section.
t
RC
selection.
MIS3
0
1
Pull-up MOS
on/off selection
Off
On
MIS1
MIS0
Figure 41 Miscellaneous Register (MIS)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD404829RFS 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD404829RH 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD404829RSERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD404829RTF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD404829TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller