EM6520 EM Microelectronic, EM6520 Datasheet - Page 42

• Manufacturer Part Number: EM6520
• Description: MFP version of EM6620 Ultra Low Power Microcontroller 4x8 LCD Driver
• Manufacturer: EM Microelectronic

14 Option Register Memory Map
The values of the Option Registers are set by initial reset on power up and through write
operations only. Other resets as reset from watchdog, reset from input port A do not change the
options register value.
EM Microelectronic-Marin SA CH-2074 Marin, Switzerland, Tel. [phone], Fax. [phone]
42
OPTNchOpDPB
OPTDebIntPA
OPTIntEdgPA
OPTNoPullPA
OPTNoPdPB
OptInpRSel1
OptInpRSel2
OPTFSelPB
RegTestEM
OPT[15:12]
OPT[19:16]
OPT[31:28]
OPT[11:8]
OPT[3:0]
OPT[7:4]
Register
Name
Add
Hex
7C
7D
7B
7F
75
76
77
78
79
Dec
Add
117
118
119
120
121
123
124
125
127
.
b'3210
Power
Value
0000
0000
0000
0000
0000
0000
0000
0000
----
On
Read Bits
----
0: NoDebIntPA[0]
1: NoDebIntPA[1]
2: NoDebIntPA[2]
3: NoDebIntPA[3]
Read / Write Bits
0: NchOpDPB[0]
1: NchOpDPB[1]
2: NchOpDPB[2]
3: NchOpDPB[3]
0: InpRes1PA[0]
1: InpRes1PA[1]
2: InpRes1PA[2]
3: InpRes1PA[3]
0: InpRes2PA[0]
1: InpRes2PA[1]
2: InpRes2PA[2]
3: InpRes2PA[3]
0: NoInputReset
1: PB32kHzOut
0: IntEdgPA[0]
1: IntEdgPA[1]
2: IntEdgPA[2]
3: IntEdgPA[3]
0: NoPullPA[0]
1: NoPullPA[1]
2: NoPullPA[2]
3: NoPullPA[3]
2: PB2kHzOut
0: NoPdPB[0]
1: NoPdPB[1]
2: NoPdPB[2]
3: NoPdPB[3]
3: PB1HzOut
Write Bits
accu
© EM Microelectonic-Marin SA , 12/98 Rev. A/246
interrupt edge select on port A
pull-down selection on port A
pull-down selection on port B
port A input reset selection,
port A input reset selection,
reset through port A inputs
frequency output on port B
A COMPANY OF
default: debouncer on
default: CMOS output
n-channel open drain
debouncer on Port A
write accu on port B
default: pos. edge
default: pull-down
default: pull-down
refer to reset part
refer to reset part
for interrupt gen.
for EM test only;
output on port B
Option register;
Option register;
Option register;
Option register;
Option register;
Option register;
Option register;
option register;
selection,
Remarks
Test = 1
EM6520