P80C557E6 查看數據表（PDF） - Philips Electronics
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P80C557E6 Datasheet PDF : 64 Pages
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Philips Semiconductors
Single-chip 8-bit microcontroller
Product specification
P83C557E6/P80C557E6
Table 5. Special Function Register Memory Map and Reset Values
High Nibble of SFR Address
LOW
8
9
A
B
C
0
P0 %
P1 %
P2 %
P3 %
P4 %
11111111
11111111
11111111
11111111
11111111
1
SP 00000111
2
DPL
00000000
3
DPH
00000000
4
D
PSW %
00000000
E
ACC %
00000000
F
B%
00000000
5
6
ADRSL0 #
ADRSL1 #
XXXXXXXX XXXXXXXX
7
PCON
00000000
8
TCON %
S0CON %
00000000
00000000
9
TMOD
S0BUF
00000000 XXXXXXXX
A
TL0
00000000
B
TL1
00000000
C
TH0
00000000
D
TH1
00000000
E
F
%=
#=
X=
Bit addressable register
Read only register
Undefined
ADRSL2 #
XXXXXXXX
IEN0 %
00000000
CML0
00000000
CML1
00000000
CML2
00000000
CTL0 #
XXXXXXXX
CTL1 #
XXXXXXXX
CTL2 #
XXXXXXXX
CTL3 #
XXXXXXXX
ADRSL3 #
XXXXXXXX
IP0 %
X0000000
ADRSL4 #
XXXXXXXX
P5 #
XXXXXXXX
TM2IR %
00000000
CMH0
00000000
CMH1
00000000
CMH2
00000000
CTH0 #
XXXXXXXX
CTH1 #
XXXXXXXX
CTH2 #
XXXXXXXX
CTH3 #
XXXXXXXX
ADRSL5 #
XXXXXXXX
ADCON
00000000
S1CON %
00000000
S1STA #
11111000
S1DAT
00000000
S1ADR
00000000
ADRSL6 #
XXXXXXXX
ADPSS
00000000
IEN1 %
00000000
TM2CON
00000000
CTCON
00000000
TML2 #
00000000
TMH2 #
00000000
STE
11000000
RTE
00000000
ADRSL7 #
XXXXXXXX
ADRSH #
000000XX
IP1 %
00000000
PLLCON
00001101
XRAMP
XXXXX000
PWM0
00000000
PWM1
00000000
PWMP
00000000
T3
00000000
6.3 Addressing
The P8xC557E6 has five methods for addressing:
• Register
• Direct
• Register–Indirect
• Immediate
• Base–Register plus Index–Register–Indirect
The first three methods can be used for addressing destination
operands. Most instructions have a “destination/source” field that
specifies the data type, addressing methods and operands involved.
For operations other than MOVs, the destination operand is also a
source operand.
Access to memory addresses is as follows:
• Register in one of the four register banks through Register, Direct
or Register–Indirect addressing
• 1536 bytes of internal RAM through Direct or Register–Indirect
addressing. Bytes 0–127 of internal RAM may be addressed
directly/indirectly. Bytes 128–255 of internal RAM share their
address location with the SFRs and so may only be addressed
indirectly as data RAM. Bytes 0–1279 of AUX–RAM can only be
addressed indirectly via MOVX.
• Special Function Register through direct addressing at address
locations 128–255 (see Figure 8).
• External data memory through Register–Indirect addressing
• Program memory look–up tables through Base– Register plus
Index–Register–Indirect addressing
1999 Mar 02
12
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