Legacy-Free Keyboard/Embedded Controller with SPI and LPC Docking Interface
Table 7.7 8051 On-Chip External Memory Mapped Registers (continued)
SYSTEM
8051
MMCR
SYSTEM
ADDRESS ADDRESS
8051
POWER VCC1 VCC2
REGISTER NAME
ADDRESS
TYPE
(7F00+)
TYPE
PLANE
POR
POR
NOTE
Multiplexing 1
register
-
-
3Dh
R/W
VCC1
00h
Output Enable
register
3Eh
see
see
Note 7.14
note
note
DISABLE register
-
-
-
-
3Fh
40h
00h
Multiplexing 2
register
PS/2 Chan A Tx/Rx
PS/2 Chan A Control
PS/2 Chan A Status
Reserved
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
41h
42h
43h
44h
45h
46h
47h
48h
VCC2
-
-
-
-
-
-
-
-
FFh
40h
00h
-
R/W
R
-
PS/2 Chan B Tx/Rx
PS/2 Chan B Control
PS/2 Chan B Status
PS/2_STATUS_2
R/W
R/W
R
VCC2
FFh
40h
00h
R,
R/WC
PS/2 Chan C Tx/Rx
PS/2 Chan C Control
PS/2 Chan C Status
Reserved
-
-
-
-
-
-
-
-
-
-
-
-
49h
4Ah
R/W
-
-
-
-
-
-
-
-
FFh
40h
00h
-
4Bh
R
4Ch
-
PS/2 Chan D Tx/Rx
PS/2 Chan D Control
PS/2 Chan D Status
-
4Dh
R/W
VCC2
FFh
40h
00h
-
4Eh
4Fh
R
-
-
-
50h-51h
-
Revision 1.1 (01-14-03)
SMSC LPC47N350
DATA5S4HEET
SMSC [ SMSC CORPORATION ]
