P80C557E4 Philips Semiconductors, P80C557E4 Datasheet - Page 11

• Manufacturer Part Number: P80C557E4
• Description: Single-chip 8-bit microcontroller
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 5. Special Function Register Memory Map and Reset Values
NOTES:
%
#
X
*
6.3 Addressing
The P8xC557E4 has five methods for addressing:
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.
1999 Mar 02
Register
Direct
Register-Indirect
Immediate
Base-Register plus Index-Register-Indirect
LOW
Single-chip 8-bit microcontroller
A
B
C
D
E
0
1
2
3
4
5
6
7
8
9
F
=
=
=
=
Bit addressable register
Read only register
Undefined
FMCON only in P89C557E4
SP 00000111
XXXXXXXX
ADRSL0 #
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
TCON %
11111111
PCON
TMOD
P0 %
DPL
TH0
TH1
DPH
TL0
TL1
8
XXXXXXXX
XXXXXXXX
ADRSL1 #
S0CON %
00000000
11111111
S0BUF
P1 %
9
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
ADRSL2 #
00000000
00000000
00000000
00000000
11111111
CTL0 #
CTL1 #
CTL2 #
CTL3 #
IEN0 %
CML0
CML1
CML2
P2 %
A
HIGH NIBBLE OF SFR ADDRESS
XXXXXXXX
ADRSL3 #
X0000000
11111111
IP0 %
P3 %
B
11
P83C557E4/P80C557E4/P89C557E4
Access to memory addresses is as follows:
Register in one of the four register banks through Register, Direct
or Register-Indirect addressing
1024 bytes of internal RAM through Direct or Register-Indirect
addressing.
– Bytes 0–127 of internal RAM may be addressed
– Bytes 0–767 of AUX-RAM can only be addressed indirectly via
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
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
ADRSL4 #
00000000
00000000
00000000
00000000
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.
MOVX.
TM2IR %
11111111
CTH0 #
CTH2 #
CTH3 #
CTH1 #
CMH0
CMH1
CMH2
P4 %
P5 #
C
XXXXXXXX
ADRSL5 #
S1CON %
00000000
00000000
00000000
00000000
00000000
11111000
S1STA #
ADCON
PSW %
S1ADR
S1DAT
D
XXXXXXXX
ADRSL6 #
00000000
00000000
00000000
00000000
00000000
00000000
00000000
11000000
00000000
TM2CON
CTCON
TMH2 #
ADPSS
IEN1 %
TML2 #
ACC %
STE
RTE
E
Product specification
XXXXXXXX
XXXXXX00
ADRSL7 #
000000XX
000X0000
00000000
00000000
00001101
00000000
00000000
00000000
00000000
ADRSH #
FMCON *
PLLCON
XRAMP
PWMP
PWM0
PWM1
IP1 %
B %
T3
F