Addressing Mode - Abov MC80F0304 User Manual

Address Name
0E3H SIOR
0E6H ASIMR
0E7H ASISR
0E8H BRGCR0
RXR
0E9H
TXR
0EAH IENH
0EBH IENL
0ECH IRQH
0EDH IRQL
0EEH IEDS
0EFH ADCM
0F0H ADCRH
0F1H ADCRL
1
BITR
0F2H
1
CKCTLR
WDTR
0F4H
WDTDR
0F5H SSCR
0F7H PFDR
0F8H PSR0
0F9H PSR1
0FCH PU0
0FDH PU1
0FEH PU2
0FFH PU3
1. The register BITR and CKCTLR are located at same address. Address ECH is read as BITR, written to CKCTLR.
Caution) The registers of dark-shaded area can not be accessed by bit manipulation instruction such as "SET1, CLR1", but should be
accessed by register operation instruction such as "LDM dp,#imm".

8.4 Addressing Mode

The MC8 series MCU uses six addressing modes;
• Register addressing
• Immediate addressing
• Direct page addressing
• Absolute addressing
November 4, 2011 Ver 2.12
Bit 7
Bit 6
SIO Data Shift Register
TXE RXE
- -
- TPS02
UART Receive Buffer Register
UART Transmit Shift Register
INT0E INT1E
T1E T2E
INT0IF INT1IF
T1IF T2IF
IED3H IED3L
ADEN ADCK
PSSEL1 PSSEL0
ADC Result Register Low
Basic Interval Timer Data Register
ADRST -
WDTCL 7-bit Watchdog Timer Register
Watchdog Timer Data Register (Counter Register)
Stop & Sleep Mode Control Register
- -
PWM3O PWM1O
- -
R0 Pull-up Selection Register
R1 Pull-up Selection Register
R2 Pull-up Selection Register
R3 Pull-up Selection Register
Table 8-2 Control Register Function Description
Bit 5 Bit 4
PS01 PS00
- -
TPS01 TPS00
INT2E INT3E
T3E -
INT2IF INT3IF
T3IF T4IF
IED2H IED2L
ADS3 ADS2
ADC8 -
RCWDT WDTON
- -
EC1E EC0E
- -
• Indexed addressing
• Register-indirect addressing
Register Addressing
Register addressing accesses the A, X, Y, C and PSW.
Bit 3 Bit 2
- SL0
- PE0
MLD03 MLD02
RXE TXE
ADCE WDTE
RXIF TXIF
ADCIF WDTIF
IED1H IED1L
ADS1 ADS0
ADC Result Reg. High
- -
BTCL BTS2
- PFDEN
INT3E INT2E
XTEN BUZO
MC80F0304/08/16
Bit 1 Bit 0
ISRM -
FE0 OVE0
MLD01 MLD00
SIOE T0E
WTE BITE
SIOIF T0IF
WTIF BITIF
IED0H IED0L
ADST ADSF
BTS1 BTS0
PFDM PFDS
INT1E INT0E
T2O T0O
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