DS_1209F_004
73S1209F Data Sheet
1.5.2 IRAM Special Function Registers (Generic 80515 SFRs)
Table 7 shows the location of the SFRs and the value they assume at reset or power-up.
Table 7: IRAM Special Function Registers Reset Values
Name
SP
Location Reset Value
Description
0x81
0x82
0x83
0x84
0x85
0x86
0x87
0x88
0x89
0x8A
0x8B
0x8C
0x8D
0x8F
0x90
0x91
0x92
0x94
0x98
0x99
0x9A
0x9B
0x9C
0x9D
0xA0
0xA1
0xA8
0xA9
0xAA
0xB2
0xB7
0xB8
0xB9
0xBA
0xBB
0xC0
0xC8
0x07
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x0A
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x01
0x00
0x00
0xD9
0x00
0x00
0x00
0x00
0x03
0x03
0x00
0x00
Stack Pointer
DPL
Data Pointer Low 0
DPH
Data Pointer High 0
DPL1
Data Pointer Low 1
DPH1
WDTREL
PCON
TCON
TMOD
TL0
Data Pointer High 1
Watchdog Timer Reload register
Power Control
Timer/Counter Control
Timer Mode Control
Timer 0, low byte
TL1
Timer 1, high byte
TH0
Timer 0, low byte
TH1
Timer 1, high byte
MCLKCtl
USR70
UDIR70
DPS
Master Clock Control
User Port Data (7:0)
User Port Direction (7:0)
Data Pointer select Register
Flash Erase
ERASE
S0CON
S0BUF
IEN2
Serial Port 0, Control Register
Serial Port 0, Data Buffer
Interrupt Enable Register 2
Serial Port 1, Control Register
Serial Port 1, Data Buffer
Serial Port 1, Reload Register, low byte
User Port Data (8)
S1CON
S1BUF
S1RELL
USR8
UDIR8
IEN0
User Port Direction (8)
Interrupt Enable Register 0
Interrupt Priority Register 0
Serial Port 0, Reload Register, low byte
Flash Control
IP0
S0RELL
FLSHCTL
PGADDR
IEN1
Flash Page Address
Interrupt Enable Register 1
Interrupt Priority Register 1
Serial Port 0, Reload Register, high byte
Serial Port 1, Reload Register, high byte
Interrupt Request Control Register
Timer 2 Control
IP1
S0RELH
S1RELH
IRCON
T2CON
Rev. 1.2
19