EM78P809N
8-Bit Microcontroller
Table 6. Summary of the Initialized Values for Registers
Address Name
Reset Type
Bit 7
C67
1
Bit 6
C66
1
Bit 5
C65
1
Bit 4
C64
1
Bit 3
C63
1
Bit 2
C62
1
Bit 1
C61
1
Bit 0
C60
1
Bit Name
Power-On
0x06
IOC6
/RESET and WDT time out
1
1
1
1
1
1
1
1
Wake-Up from SLEEP, IDLE mode
Bit Name
Power-on
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
P
X
U
U
U
X
U
U
U
P
X
U
U
U
X
U
U
U
P
X
U
U
U
X
U
U
U
C95
1
P
X
U
U
U
X
U
U
U
P
C73
1
1
P
X
U
U
U
P
C72
1
1
P
P
C71
1
1
P
C81
1
1
P
C91
1
P
C70
1
1
P
C80
1
1
P
C90
1
0x07
0x08
0x09
0x0B
0x0C
0x0E
0x0F
N/A
IOC7
IOC8
X
Power-on
U
U
U
C92
1
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
C97
1
C96
1
C94
1
C93
1
Power-On
IOC9
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
1
P
1
P
1
P
X
0
0
P
1
P
1
P
1
P
X
0
0
P
X
U
U
U
1
P
1
P
INT1NR INT0EN
INT1ES TC2ES
INT3ES1 INT3ES0
Power-On
0
0
P
CALI
0
0
0
0
P
0
0
P
0
0
P
0
0
0
0
INTCR
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
P
X
U
U
U
P
X
U
U
U
SIGN VOF2 VOF1 VOF0
Power-on
0
P
P
0
P
P
0
P
P
X
U
U
U
UTIE
0
0
0
P
P
ADOSC
R
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
0
EXIE5 TCIE2 ADIE
0
0
P
X
U
U
U
EXIE3 TCIE4 SPIE TCIE3
Power-on
0
0
P
0
0
P
URIE
0
0
0
0
P
0
0
P
0
0
0
0
P
IMR1
IMR2
CONT
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
P
X
U
U
U
TBIE EXIE1
0
0
TCIE0
UERRIE
Power-on
0
0
P
0
0
P
0
0
P
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
P
P
P
WDT0
/INT WDTP1 WDTP0 WDTE PSR2 PSR1 PSR0
Power-on
0
0
P
-
0
0
P
-
0
0
P
-
0
0
P
-
0
0
P
-
0
0
P
-
0
0
P
-
0
0
P
-
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
Power-on
U
P
U
P
U
P
U
P
U
P
U
P
U
P
U
P
R0
(IAR)
0x00
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
P
-
P
-
P
-
P
-
P
-
P
-
P
-
P
-
Power-on
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R1
(TCC)
0x01
0x02
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
P
-
P
-
P
-
P
-
P
-
P
-
P
-
P
-
Power-on
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R2
(PC)
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
Jump to interrupt vector or execute next instruction
RBS1 RBS0
X
0
0
P
T
1
t
P
1
t
Z
U
P
P
DC
U
P
C
U
P
P
R3
(SR)
Power-on
0
0
P
0
0
P
0x03
0x04
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
Bit Name
t
t
P
GRBS1 GRBS0 RSR5 RSR4 RSR3 RSR2 RSR1 RSR0
R4
(RSR)
Power-On
/RESET and WDT time out
Wake-Up from SLEEP, IDLE mode
0
0
P
0
0
P
U
P
P
U
P
P
U
P
P
U
P
P
U
P
P
U
P
P
Product Specification (V1.0) 07.26.2005
• 49
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
