em6521 EM Microelectronic, em6521 Datasheet - Page 51

• Manufacturer Part Number: em6521
• Description: Mfp Version Of Em6621 Ultra Low Power Microcontroller With 4x20 Lcd Driver
• Manufacturer: EM Microelectronic

15 Peripheral Memory Map
Reset values are valid after power up or after every system reset.
Copyright © 2005, EM Microelectronic-Marin SA
RegPBCntl
Ram1_63
Ram1_0
Ram2_0
Ram2_3
Register
LCD_1
LCD_2
LCD_3
RegPA
Name
---
---
...
...
...
R
Add
Hex
00
3F
40
43
44
45
46
47
4F
50
51
...
...
...
Dec.
Add
63
64
67
68
69
70
71
79
80
81
...
...
...
0
b'3210
Reset
Value
0000
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
...
...
0: PAData[0]
1: PAData[1]
2: PAData[2]
3: PAData[3]
Connections are user definable.
Connections are user definable.
Connections are user definable.
Read Bits
Read / Write Bits
See LCD section
See LCD section
See LCD section
0: PBIOCntl[0]
1: PBIOCntl[1]
2: PBIOCntl[2]
3: PBIOCntl[3]
0: Data0
1: Data1
2: Data2
3: Data3
0: Data0
1: Data1
2: Data2
3: Data3
0: Data0
1: Data1
2: Data2
3: Data3
0: Data0
1: Data1
2: Data2
3: Data3
51
Write Bits
----
The 8 higher Nibbles are not
16 nibbles addressable over
16 nibbles addressable over
16 nibbles addressable over
16 nibbles addressable over
addressable over the index
Reserved, not implemented
Reserved, not implemented
index register on add 'H70
index register on add 'H70
used and not implemented
The 8 lower nibbles are
register on add 'H70.
Normal addressable
Normal addressable
Read port A directly
Default: input mode
index register
index register
Port B control
Ram 64x4 bit
Ram 64x4 bit
on add 'H70
on add 'H70
Remarks
www.emmicroelectronic.com
EM6521
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