em6521 EM Microelectronic, em6521 Datasheet - Page 54

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

P = defined by POR (power on reset)
Copyright © 2005, EM Microelectronic-Marin SA
RegLCDCntl1
RegLCDCntl2
RegIndexAdr
RegVldLevel
RegVldCntl
RegPresc
Register
IXHigh
IXLow
Name
R
Add
Hex
6D
6E
6F
70
71
72
73
74
Dec.
Add
109
110
111
112
113
114
115
116
b'3210
Reset
Value
PP00
111P
0000
0000
0000
x000
xxxx
xxxx
0: DebSel
1: PrIntSel
2: '0'
3: PWMOn
0: IXHigh[4]
1: IXHigh[5]
2: IXHigh[6]
3: '0'
0: NoLogicWD
1: NoOscWD
2: VldBusy
3: VldResult
2: StrobeOutSel0
3: StrobeOutSel1
0: LCDExtSupply
0: CkTripSel0
1: CkTripSel1
1: Lcd4xMux
3: LCDBlank
2: LCDOff
Read Bits
Read / Write Bits
0: IndexAdr[0]
1: IndexAdr[1]
2: IndexAdr[2]
3: IndexAdr[3]
0: VldLevel0
1: VldLevel1
2: VldLevel2
0: IXLow[0]
1: IXLow[1]
2: IXLow[2]
3: IXLow[3]
3: --
0: DebSel
1: PrIntSel
2: ResPresc
3: PWMOn
0: IXHigh[4]
1: IXHigh[5]
2: IXHigh[6]
3: --
0: NoLogicWD
1: NoOscWD
2: VldStart
3: --
54
Write Bits
Indexed addressing register for
for µP indexed addressing
for µP indexed addressing
multiplier clock and strobe
debouncer and prescaler
detection level selection
4x16 nibble RAM2 and
Voltage level detector;
3x16 + 8 nibble LCD
register high nibble;
register low nibble;
Prescaler control;
Internal µP index
Internal µP index
interrupt select
detector control
LCD control 0;
LCD control 1;
Voltage level
output select
main selects
Remarks
www.emmicroelectronic.com
EM6521