Legacy-Free Keyboard/Embedded Controller with SPI and LPC Docking Interface
2.
3.
movx
@DPTR,A
mov
MPAGE,#7FH
movx
A,@Rx
(R0 or R1 only)
(R0 or R1 only)
4.
mov
MPAGE,#7FH
@Rx,A
movx
Table 7.7 8051 On-Chip External Memory Mapped Registers
SYSTEM
8051
MMCR
SYSTEM
ADDRESS ADDRESS
8051
POWER VCC1 VCC2
REGISTER NAME
ADDRESS
TYPE
(7F00+)
TYPE
PLANE
POR
POR
NOTE
Reserved
-
-
F0h
F1h
-
-
-
-
-
Host I/F Data Reg
[KBD
LPC 60h
LPC 64h
W
R
VCC1
Note 7.9
Data/Command
Write Reg.]
Host I/F Data Reg
[KBD Data Read
Reg.]
LPC 60h
LPC 64h
R
W
-
Host I/F Status Reg
[KBD Status Reg.]
F2h
R/W
00h
Note 7.10
Note 7.16
RTC Address 1
RTC Data 1
RTC Address 2
RTC Data 2
HTIMER
LPC 70h
R/W
-
-
LPC 71h
-
-
-
LPC 74h
-
-
-
00h
-
LPC 76h
-
-
-
-
F3h
F4h
F5h
F6h
F7h
F8h
F9h
FAh
R/W
00h
Config Reg 0
RTCCNTRL
RTCADDRL
RTCDATAL
RTCADDRH
RTCDATAH
-
-
-
80h
00h
00
-
-
-
-
-
-
00h
-
-
Aux Host Data Reg
[KBD Data Read
Reg.]
LPC 60h
R
W
-
Note 7.11
GATEA20
-
-
-
-
-
FBh
FCh
R/W
-
01h
-
-
-
Revision 1.1 (01-14-03)
SMSC LPC47N350
DATA5S0HEET
SMSC [ SMSC CORPORATION ]
