CP80S54E ETC2 [List of Unclassifed Manufacturers], CP80S54E Datasheet - Page 5

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

Note 1 : There is only 1 bit in CP80S54/S54E. And there are 2 bits in CP80S56/S56E.
1.2 Data Memory Organization
Data memory is composed of Special Function Registers and General Purpose Registers.
The General Purpose Registers are accessed either directly or indirectly through the FSR register.
The Special Function Registers are registers used by the CPU and peripheral functions to control the
operation of the device.
TABLE 1.1: Registers File Map for CP8054/56 Series
TABLE 1.2: The Registers Controlled by OPTION or IOST Instructions
TABLE 1.3: Operational Registers Map
Legend: - = unimplemented, read as ‘0’, * = unimplemented, read as ‘1’
0Ch (r/w)
0Dh (r/w)
0Ah (r/w)
0Bh (r/w)
0Eh (r/w)
0Fh (r/w)
00h (r/w)
01h (r/w)
02h (r/w)
03h (r/w)
04h (r/w)
05h (r/w)
06h (r/w)
07h (r/w)
08h (r/w)
09h (r/w)
Address
Address
N/A (w)
05h (w)
06h (w)
10h ~ 3Fh
Address
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
PCHBUF
INTFLAG
OPTION
WUCON
STATUS
ODCON
PDCON
PHCON
PORTA
PORTB
IOSTA
IOSTB
INTEN
SRAM
PCON
TMR0
Name
Name
INDF
PCL
FSR
General Purpose Registers
General Purpose Register
(2)
WDTE
WUB7
/PDB3
/PHB7
ODB7
IOA7
IOB7
GP2
GIE
Description
B7
B7
INTFLAG
*
PCHBUF
-
-
-
WUCON
STATUS
ODCON
PDCON
PHCON
PORTB
PORTA
INTEN
PCON
TMR0
INDF
PCL
FSR
Uses contents of FSR to address data memory (not a physical register)
INTEDG
WUB6
/PDB2
/PHB6
ODB6
IOA6
IOB6
GP1
EIS
B6
B6
*
-
-
-
LVDTE
WUB5
/PDB1
/PHB5
ODB5
T0CS
IOA5
IOB5
GP0
B5
B5
-
-
-
8-bit real-time clock/counter
Port B I/O Control Register
Port A I/O Control Register
General Purpose Register
Low order 8 bits of PC
WUB4
/PDB0
/PHB4
ODB4
T0SE
IOA4
IOB4
ROC
Indirect data memory address pointer
TO
B4
B4
-
-
-
05h
06h
N/A
WUB3
/PDA3
/PHB3
ODB3
IOA3
IOB3
PSA
PD
B3
B3
-
-
-
-
OPTION
IOSTB
IOSTA
CP80S54/56
WUB2
/PDA2
/PHB2
ODB2
INTIE
INTIF
IOA2
IOB2
PS2
B2
B2
Z
-
2 MSBs Buffer of PC
WUB1
/PDA1
/PHB1
ODB1
IOA1
IOB1
PBIE
PBIF
PS1
DC
Rev0.1 Nov 30, 2005
B1
B1
-
P.5/CP80S54/S56
WUB0
/PDA0
/PHB0
ODB0
IOA0
IOB0
T0IE
T0IF
PS0
B0
B0
C
-