AP160

Version 0.0

6

AMIC Technology, Inc.

SPECIAL FUNCTION REGISTERS

A map of the on-chip memory area called the Special Function Register (SFR) space is shown in Table 1.

Table 1. AP160 SFR Map and Reset Values

0F8H

0FFH

0F0H

B

00000000

0F7H

0E8H

0EFH

0E0H

ACC

00000000

0E7H

0D8H

0DFH

0D0H

PSW

00000000

0D7H

0C8H

T2CON

00000000

T2MOD

XXXXXX00

RCAP2L

00000000

TL2

00000000

TH2

00000000

0CFH

0C0H

0C7H

0B8H

IP

XX000000

0BFH

0B0H

P3

11111111

0B7H

0A8H

IE

0X000000

0AFH

0A0H

P2

11111111

0A7H

098H

SCON

00000000

SBUF

XXXXXXXX

09FH

090H

P1

11111111

097H

088H

TCON

00000000

TMOD

00000000

TL0

00000000

TL1

00000000

TH0

00000000

TH1

00000000

08FH

080H

P0

11111111

SP

00000111

DPL

00000000

DPH

00000000

PCON

0XXX0000

087H

Note that not all of the addresses are occupied. Unoccupied addresses may not be implemented on the chip. Read

accesses to these addresses will in general return random data, and write accesses will have an indeterminate effect. User

software should not write 1s to these unlisted locations, since they may be used in future AMIC products to invoke new

features. In that case the reset or inactive values of the new bits will always be 0.