EM78P258N
8-Bit Microprocessor with OTP ROM
Address Name
Reset Type
Bit 7
Bit 6
BS
0
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
X
0
0
X
U
P
X
U
P
X
U
P
X
U
P
X
U
P
X
U
P
Power-On
0x04
R4(RSR)
/RESET and WDT
0
Wake-Up from Pin
Change
0
P
P
P
P
P
P
P
Bit Name
P57
1
P56
1
P55
1
P54
1
P53
1
P52
1
P51
1
P50
1
Power-On
0x05
0x06
0x7
R5
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
P67
1
P66
1
P65
1
P64
1
P63
1
P62
1
P61
1
P60
1
Power-On
R6
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
–
0
0
–
0
0
–
0
0
–
0
0
–
0
0
–
0
0
–
0
0
P70
1
Power-On
R7
/RESET and WDT
1
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
–
0
0
–
0
0
–
0
0
–
0
0
ADE3
ADE2
ADE1
ADE0
Power-On
0
0
0
0
0
0
0
0
R8
0x8
/RESET and WDT
(AISR)
Wake-Up from Pin
Change
0
0
0
0
P
P
P
P
Bit Name
VREFS CKR1
CKR0 ADRUN ADPD
–
0
0
ADIS1
ADIS0
Power-On
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R9
0x9
/RESET and WDT
(ADCON)
Wake-Up from Pin
Change
P
P
P
P
P
0
P
P
Bit Name
CALI
SIGN
VOF[2] VOF[1] VOF[0]
–
0
0
–
0
0
–
0
0
Power-On
0
0
0
0
0
0
0
0
0
0
RA
0xA
0XB
/RESET and WDT
(ADOC)
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
AD11
U
AD10
U
AD9
U
AD8
U
AD7
U
AD6
U
AD5
U
AD4
U
Power-On
RB
/RESET and WDT
U
U
U
U
U
U
U
U
(ADDATA)
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Product Specification (V1.0) 06.16.2005
• 37
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
