Mitsubishi Motors DS5000TK User Manual
Page 39
USER’S GUIDE
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39
DS5000 MEMORY CONTROL REGISTER
Label:MCON
Register Address: 0C6H
D7
D6
D5
D4
D3
D2
D1
D0
PA3
PA2
PA1
PA0
RA32/8
ECE2
PAA
SL
Bit Description:
MCON.7–4:
PA3–0
“Partition Address”:
Used to select the starting address of Data Memory on the Byte–wide bus.
Program space lies below the partition address.
PA3
PA2
PA1
PA0
Partition Address
0
0
0
0
0000H
0
0
0
1
0800H
0
0
1
0
1000H
0
0
1
1
1800H
0
1
0
0
2000H
0
1
0
1
2800H
0
1
1
0
3000H
0
1
1
1
3800H
1
0
0
0
4000H
1
0
0
1
4800H
1
0
1
0
5000H
1
0
1
1
5800H
1
1
0
0
6000H
1
1
0
1
6800H
1
1
1
0
7000H*
1
1
1
1
8000H*
*A 4K byte increment (not 2K bytes) in the Partition Address takes place between bit field values 1110B and
111B.
Initialization:
Set to all 1’s on a No V
LI
Power On Reset or when the Security Lock bit is
cleared to a 0 from previous 1 state. These bits are also set to all 1’s when
any attempt is made to have them cleared to all 0’s with the SL bit set to 1
(illegal condition).
Read Access:
May be read anytime.
Write Access:
PAA bit must = 1 in order to write PA3–0. Timed Access is not required to
write to PA3–0 once PAA=1.
MCON.3:
RA32/8
“Range Address”:
Set the maximum usable address in on the Byte–wide bus.
RA32/8=0 sets Range Address = 1FFFH (8K)
RA32/8=1 sets Range Address = 7FFFH (32K)
Initialization:
Set to a 1 during a No V
LI
Power On Reset and when the Security Lock bit
(SL) is cleared to a 0 from a previous 1 state. Remains unchanged on all oth-
er types of resets.