CP80S54E ETC2 [List of Unclassifed Manufacturers], CP80S54E Datasheet - Page 21

• Manufacturer Part Number: CP80S54E
• Description: EPROM/ROM-Based 8-Bit Microcontroller Series
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

TABLE 2.1: Reset Conditions for All Registers
Legend: u = unchanged, x = unknown, - = unimplemented,
TABLE 2.2: TO / PD Status after Reset
Legend: u = unchanged
TABLE 2.3: Events Affecting TO / PD Status Bits
Power-on
WDT Time-Out
SLEEP instruction
CLRWDT instruction
Legend: u = unchanged
TO
1
1
u
1
0
0
General Purpose Registers
General Purpose Register
# = refer to the following table for possible values.
PD
1
1
u
0
1
0
Event
INTFLAG
PCHBUF
OPTION
STATUS
WUCON
Register
ODCON
PDCON
PHCON
PORTB
PORTA
IOSTA
IOSTB
INTEN
PCON
TMR0
Power-on Reset
Brown-out reset
RSTB Reset during normal operation
RSTB Reset during SLEEP
WDT Reset during normal operation
WDT Reset during SLEEP
INDF
ACC
PCL
FSR
RESET was caused by
TO
1
0
1
1
PD
1
u
0
1
10 ~ 3Fh
Address
0Ch
0Dh
N/A
05h
06h
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Eh
0Fh
N/A
54: ---- ---0
56: ---- --00
Brown-out Reset
Power-on Reset
xxxx xxxx
-011 1111
1111 1111
1111 1111
xxxx xxxx
xxxx xxxx
1111 1111
0001 1xxx
11xx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
1010 ----
0000 0000
1111 1111
0000 0000
1111 1111
0--- -000
---- -000
xxxx xxxx
CP80S54/56
54: ---- ---0
56: ---- --00
RSTB Reset
uuuu uuuu
-011 1111
1111 1111
1111 1111
uuuu uuuu
uuuu uuuu
1111 1111
000# #uuu
11uu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
1010 ----
0000 0000
1111 1111
0000 0000
1111 1111
0--- -000
---- -000
uuuu uuuu
WDT Reset
Rev0.1 Nov 30, 2005
P.21/CP80S54/S56