參數(shù)資料
型號: MB90F377
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16位微控制器專有
文件頁數(shù): 98/140頁
文件大?。?/td> 650K
代理商: MB90F377
MB90370/375 Series
98
20. Bit decoder
The bit decoder is a simple one-hot decoder that can be used together with the keyscan inputs. It consists of a
bit data register (BDR) , a decoder logic and a bit result register (BRR) . A 4-bit encoded data can be loaded
into BDR, then the decoder logic will decode the data and store the 16-bit resulted data into BRR. A table below
shows the decoder’s logic.
4-bit encoded data
(1) Register configuration of bit decoder
16-bit resulted data
0
H
1
H
2
H
3
H
4
H
5
H
6
H
7
H
8
H
9
H
A
H
B
H
C
H
D
H
E
H
F
H
0000 0000 0000 0001
B
0000 0000 0000 0010
B
0000 0000 0000 0100
B
0000 0000 0000 1000
B
0000 0000 0001 0000
B
0000 0000 0010 0000
B
0000 0000 0100 0000
B
0000 0000 1000 0000
B
0000 0001 0000 0000
B
0000 0010 0000 0000
B
0000 0100 0000 0000
B
0000 1000 0000 0000
B
0001 0000 0000 0000
B
0010 0000 0000 0000
B
0100 0000 0000 0000
B
1000 0000 0000 0000
B
Bit Data Register
Bit Result Register (Upper)
Bit Result Register (Lower)
Bit number
BDR
Address : 0000E1
H
Read/write
Initial value
Bit number
BRRH
Address : 0000E3
H
Read/write
Initial value
Bit number
BRRL
Address : 0000E2
H
Read/write
Initial value
R/W
X
R/W
X
R/W
X
R/W
X
15
14
13
12
11
10
9
8
D3
D2
D1
D0
R
X
R
X
R
X
R
X
R
X
R
X
R
X
15
14
13
12
11
10
9
8
R14
R
X
R15
R13
R12
R11
R10
R9
R8
R
X
R
X
R
X
R
X
R
X
R
X
R
X
7
6
5
4
3
2
1
0
R6
R
X
R7
R5
R4
R3
R2
R1
R0
相關(guān)PDF資料
PDF描述
MB90F377PFF-G 16-bit Proprietary Microcontroller
MB90F378 16-bit Proprietary Microcontroller
MB90F378PFF-GE1 16-bit Proprietary Microcontroller
MB90F387 16-bit Proprietary Microcontroller CMOS
MB90F387PMT 16-bit Proprietary Microcontroller CMOS
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