
The states of the special function registers are summarized in the following table:
R egister
R eset
(power on)
WDT time-out
(normal
operation)
uuuu uuuu
uuuu uuuu
00-0 1---
uuuu uuuu
uuuu uuuu
00-0 1---
000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--1u uuuu
-000 0000
0000 0111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
R E S reset
(normal
operation)
uuuu uuuu
uuuu uuuu
00-0 1---
uuuu uuuu
uuuu uuuu
00-0 1---
000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
-000 0000
0000 0111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
R E S reset
(HALT)
WDT
time-out*
(HALT)
uuuu uuuu
uuuu uuuu
uu-u u---
uuuu uuuu
uuuu uuuu
uu-u u---
000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--11 uuuu
-uuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
TMR1H
TMR1L
TMR1C
TMR0H
TMR0L
TMR0C
PC
MP0
MP1
ACC
TBLP
TBLH
STATUS
INTC
WDTS
PA
PAC
PB
PBC
PC
PCC
PD
PDC
PE
PE C
PF
PFC
PG
PGC
xxxx xxxx
xxxx xxxx
00-0 1---
xxxx xxxx
xxxx xxxx
00-0 1---
000H
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
--00 xxxx
-000 0000
0000 0111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
uuuu uuuu
00-0 1---
uuuu uuuu
uuuu uuuu
00-0 1---
000H
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--01 uuuu
-000 0000
0000 0111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
Note:
“
” means “warm reset”
“u” means “unchanged”
“x” means “unknown”
“–” means “undefined”
The bits of the special function registers are denoted as “–” if they are not defined
in the microcontrollers.
HT48CXX/HT48RXX
24
25th May ’99