Hyundai gms90x54c Manual Do Utilizador

Jan. 2001   Ver 1.0

11

All registers, except the program counter and the four general purpose register banks, reside in the special func-
tion register area.

The 28 special function registers (SFR) include pointers and registers that provide an interface between the CPU
and the other on-chip peripherals. There are also 128 directly addressable bits within the SFR area.

All SFRs are listed in Table 1, Table 2, and Table 3.

In Table 1 they are organized in numeric order of their addresses. In Table 2 they are organized in groups which
refer to the functional blocks of the GMS90X5XC series. Table 3 illustrates the contents of the SFRs

Table 1. Special Function Registers in Numeric Order of their Addresses (cont’d)

80H
81H
82H
83H
84H
85H
86H
87H

SP

DPL

DPH

reserved
reserved
reserved

PCON

07H
00H
00H

XXH

 2)

XXH

 2)

XXH

 2)

0XXX0000

B

 2)

88H
89H

8AH
8BH
8CH
8DH
8EH
8FH

 1)

TMOD

TL0
TL1

TH0
TH1

AUXR0

CKCON

00H
00H
00H
00H
00H
00H

XXH

 2)

XXXXXXX0

B

 2)

90H
91H

 

92H

 

93H

 

94H

 

95H

 

96H

 

97H

 

 1)

reserved

 

reserved

 

reserved

 

reserved

 

reserved

 

reserved

 

reserved

 

00

H

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

98H
99H

9AH
9BH
9CH
9DH
9EH
9FH

 1)

SBUF

reserved
reserved
reserved
reserved
reserved
reserved

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

A0H
A1H
A2H
A3H
A4H
A5H
A6H
A7H

reserved
reserved
reserved
reserved
reserved
reserved
reserved

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

 

A9H

 

AAH

 

ABH

 

ACH

 

ADH

 

AEH

 

AFH

 

 1)

reserved

 

reserved

 

reserved

 

reserved

 

reserved

 

reserved

 

reserved

 

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

B0H
B1H
B2H
B3H
B4H
B5H
B6H
B7H

 1)

reserved
reserved
reserved
reserved
reserved
reserved
reserved

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

B8H
B9H
BAH
BBH

BCH
BDH
BEH

BFH

 1)

reserved
reserved
reserved
reserved
reserved
reserved
reserved

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)

XXH

 2)