saa5288 NXP Semiconductors, saa5288 Datasheet - Page 12

• Manufacturer Part Number: saa5288
• Description: Microcontroller With Full Screen Screen Display
• Manufacturer: NXP Semiconductors

7.4
The 80C51 communicates with the peripheral functions using Special Function Registers which are addressed as RAM locations. The registers in the
teletext decoder appear as normal SFRs in the microcontroller memory map, but are written to using an internal serial bus. The SFR map is given in
Section 7.4.1 and the SFR bit description is given in Section 7.4.2.
7.4.1
Table 10 Special Function Register map; note 1
ACC
B
DPTR:
DPH
DPL
IE
P0
P1
P2
P3
PCON
PSW
SYMBOL
(2)
(2)(3)
(2)
(2)
(2)
(2)(3)
(2)
(2)
Microcontroller Interfacing
(3)
S
PECIAL
Accumulator
B register
Data Pointer
(2 bytes):
High byte
Low byte
Interrupt
Enable
Port 0
Port 1
Port 2
Port 3
Power Control
Program
Status Word
NAME
F
UNCTION
R
EGISTER MAP
ADDRESS
DIRECT
(HEX)
D0
E0
F0
83
82
A8
80
90
A0
B0
87
CY
E7
AF
EA
A7
D7
F7
87
97
7
ES1
AE
D6
AC
BIT ADDRESS, SYMBOL OR ALTERNATIVE PORT FUNCTION
E6
F6
86
96
A6
6
*
ES2
AD
E5
F5
A5
D5
F0
85
95
5
RS1
AC
E4
A4
D4
F4
84
94
4
*
*
ET1
GF1
RS0
AB
E3
F3
A3
B3
D3
83
93
3
EX1
GF0
OV
E2
AA
A2
B2
D2
F2
82
92
2
ET0
E1
A9
A1
B1
D1
F1
81
91
1
*
EX0
E0
A8
A0
B0
D0
F0
80
90
0
P
RESET
VALUE
(HEX)
FF
FF
FF
FF
00
00
00
00
00
10
00