HT46R53A 查看數據表（PDF） - Holtek Semiconductor
零件编号
产品描述 (功能)
生产厂家
HT46R53A Datasheet PDF : 43 Pages
| |||
HT46R53A/HT46R54A
H T46R 53A
00H
In d ir e c t A d d r e s s in g R e g is te r 0
01H
M P0
02H
In d ir e c t A d d r e s s in g R e g is te r 1
03H
M P1
04H
05H
ACC
06H
PCL
07H
TB LP
08H
TB LH
09H
0A H
STATU S
0B H
IN T C
0C H
0D H
TM R
0E H
TM R C
0FH
10H
11H
12H
PA
13H
PAC
14H
PB
15H
PBC
16H
PC
17H
PCC
18H
PD
19H
PDC
1A H
PW M
1B H
1C H
1D H
1E H
1FH
20H
ADRL
21H
ADRH
22H
ADCR
23H
ACSR
24H
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0A H
0B H
0C H
0D H
0E H
0FH
10H
S p e c ia l P u r p o s e 1 1 H
D a ta M e m o ry
12H
13H
14H
15H
16H
17H
18H
19H
1A H
1B H
1C H
1D H
1E H
1FH
20H
21H
22H
23H
:U nused
24H
H T46R 54A
In d ir e c t A d d r e s s in g R e g is te r 0
M P0
In d ir e c t A d d r e s s in g R e g is te r 1
M P1
BP
ACC
PCL
TB LP
TB LH
STATU S
IN T C
TM R
TM R C
PA
PAC
PB
PBC
PC
PCC
PD
PDC
PW M
ADRL
ADRH
ADCR
ACSR
S p e c ia l P u r p o s e
D a ta M e m o ry
:U nused
27H
R e a d a s "0 0 "
27H
R e a d a s "0 0 "
28H
G e n e ra l P u rp o s e
D a ta M e m o ry
(1 9 2 B y te s )
E 7H
28H
G e n e ra l P u rp o s e
D a ta M e m o ry
40H
G e n e ra l P u rp o s e
(2 1 6 B y te s )
D a ta M e m o ry
FFH
7FH
(6 4 B y te s )
B ank 1
RAM Mapping
The ALU not only saves the results of a data operation
but also changes the status register.
Status Register - STATUS
This 8-bit register (0AH) contains the zero flag (Z), carry
flag (C), auxiliary carry flag (AC), overflow flag (OV),
power down flag (PDF), and watchdog time-out flag
(TO). It also records the status information and controls
the operation sequence.
With the exception of the TO and PDF flags, bits in the
status register can be altered by instructions like most
other registers. Any data written into the status register
will not change the TO and PDF flags. Addition opera-
tions related to the status register may give different re-
sults from those intended. The TO flag can be affected
only by system power-up, a WDT time-out or executing
the ²HALT² or ²CLR WDT² instruction. The PDF flag can
be affected only by executing the ²HALT² or ²CLR
WDT² instruction or a system power-up.
The Z, OV, AC, and C flags reflect the status of the latest
operations. On entering the interrupt sequence or exe-
cuting the subroutine call, the status register will not be
automatically pushed onto the stack. If the contents of
the status is important, and if the subroutine is likely to
corrupt the status register, the programmer should take
precautions and save it properly.
Rev. 1.00
9
August 24, 2006
Share Link: 