Datasheet

Microcontroller Unit (MCU)
6−8
SLLS535E − April 2008TUSB6250
6.3 MCU Control and Status Registers (in SFR and ESFR Space)
This section describes the PCON register (in standard 8051 SFR space) and all the registers added to the
standard 8051 special function registers (SFRs) space in the TUSB6250 controller. These added registers
are referred to as extended special function registers (ESFRs).
For information regarding the standard SFRs, see the industry-standard 8051 specification. Table 6−3
outlines the standard and extended 8051 registers in the IDATA space.
Table 6−3. SFR Map [IDATA: 0x80 → 0xFF]
DESCRIPTION LABEL ADDRESS
Port 0 P0 80
Stack pointer SP 81
Data pointer LB DPL 82
Data pointer HB DPH 83
Power control register PCON 87
Timer/counter control TCON 88
Timer/counter mode TMOD 89
Timer/counter 0 LB TL0 8A
Timer/counter 1 LB TL1 8B
Timer/counter 0 HB TH0 8C
Timer/counter 1 HB TH1 8D
Port 1 P1 90
Serial control register SCOM 98
Serial data buffer SBUF 99
Port 2 P2 A0
Interrupt enable register IE A8
Port 3 P3 B0
Interrupt priority register IP B8
Break point status register BPSTA BD
Break point register 1 (LB) (see Note 1) BPL1 BE
Break point register 1 (HB) PBH1 BF
Reserved (see Note 2) C0
Break point register 2 (LB) BPL2 C1
Break point register 2 (HB) PBH2 C2
Reserved C3
Break point register 3 (LB) BPL3 C4
Break point register 3 (HB) PBH3 C5
Reserved C6
Break point register 4 (LB) BPL4 C7
Break point register 4 (HB) PBH4 C8
Reserved C9
Jump-to-monitor address register (LB) JTML CA
Jump-to-monitor address register (HB) JTMH CB
Reserved CC
Reserved CD
Stack break point register SBK CE
Break point control register BPCRL CF
Program status word PSW D0