參數(shù)資料
型號: MB90F372PMT-G
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP144
封裝: 0.40 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 142/153頁
文件大?。?/td> 2503K
代理商: MB90F372PMT-G
MB90370 Series
89
18. 3-channel PS/2 interface
The 3-channel PS/2 interface consists of 3 individual channels of PS/2 interface that can be operated concur-
rently. PS/2 interface is a two wires, bidirectional serial bus providing economical way for data exchange between
host (keyboard controller) and device (keyboard / mouse etc).
(1) Register configuration of 3-channel PS/2 interface
76
5
4
3
2
1
0
Bit number
PS/2 Interface Data Register (Ch 0, Ch 2)
Address: ch0 000056H
ch2 000058H
PSDR0/2
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
Initial value
Read/write
15
14
13
12
11
10
9
8
Bit number
PS/2 Interface Status Register
PSSR0/1/2
R
0
R
0
R
0
R
0
R
0
R/W
0
R
0
Initial value
Read/write
PE
FRE/NAK
RAF
TS
TBC
BNR
TC
D7
D6
D5
D4
D3
D2
D1
D0
Address: ch0 000051H
ch1 000053H
ch2 000055H
7
6
5
4
3
2
1
0
Bit number
PS/2 Interface Control Register
PSCR0/1/2
R/W
0
R/W
0
R/W
0
Initial value
Read/write
BREQ
TE
RE
Address: ch0 000050H
ch1 000052H
ch2 000054H
IE
R/W
0
PS2E
R/W
0
15
14
13
12
11
10
9
8
Bit number
PS/2 Interface Mode Register
PSMR
R/W
0
R/W
0
Initial value
Read/write
DIV1
DIV0
Address: 000059H
15
14
13
12
11
10
9
8
Bit number
PSDR1
Address: ch1 000057H
PS/2 Interface Data Register (Ch 1)
D7
D6
D5
D4
D3
D2
D1
D0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
Initial value
Read/write
FED
R
0
FEDE
R/W
0
R/W
NFS0
0
NFS1
R/W
0
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