參數(shù)資料
型號: MB90F372PMT-G
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): 92/153頁
文件大?。?/td> 1573K
代理商: MB90F372PMT-G
MB90370 Series
92
19. Parity generator
The parity generator is a simple circuit that generates odd / even parity based on the input data. It consists of a
parity generator data register (PGDR), an odd / even parity generation logic and a parity generator control status
register (PGCSR).
An 8-bit data can be loaded into PGDR, then the parity generator will generate odd / even parity based on the
input data. Either odd or even parity can be generated by setting the PGCSR.
For odd parity generation, if the number of
1
s in the PGDR is even number, then the parity bit in PGCSR will
be set to
1
, otherwise the parity bit will be set to
0
.
For even parity generation, if the number of
1
s in the PGDR is even number, then the parity bit in PGCSR will
be set to
0
, otherwise the parity bit will be set to
1
.
Table shows some examples of odd / even parity generation.
(1) Register configuration of parity generator
Input data
Parity bit (odd parity)
Parity bit (even parity)
0000 0000
B
0101 0101
B
1000 0000
B
1010 1011
B
1
1
0
0
0
0
1
1
15
14
13
12
11
10
9
8
Parity Generator Control Status Register
PGCSR
Bit number
R/W
0
Initial value
Read/write
PSEL
7
6
5
4
3
2
1
0
Parity Generator Data Register
PGDR
Bit number
Initial value
Read/write
D6
D5
D4
D3
D2
D1
D0
Address : 000018
H
Address : 000019
H
R
X
PRTY
D7
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
R/W
X
-
-
-
-
-
-
-
-
-
-
-
-
相關(guān)PDF資料
PDF描述
MB90F372 16-bit Proprietary Microcontroller
MB90F372PFF-G 16-bit Proprietary Microcontroller
MB90F377 16-bit Proprietary Microcontroller
MB90F377PFF-G 16-bit Proprietary Microcontroller
MB90F378 16-bit Proprietary Microcontroller
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