SDA6000 Datasheet, PDF (149/380 Pages) Infineon Technologies AG – Teletext Decoder with Embedded 16-bit Controller

SDA 6000
System Control & Configuration
The number of segment address lines is selected via P4 during reset. The selected value
can be read from bit field SALSEL and CSENA of register RP0H e.g. in order to check
the configuration during run time.
Port 4 Altern.
Altern.
Altern.
Altern.
Altern.
SALSEL = 010 or
Pin Function
Function
Function
Function
Function
001 or 000
SALSEL = 111 SALSEL = 110 SALSEL = 101 SALSEL = 100 SALSEL = 011
P4.0 A16
A16
A16
A16
A16
Gen. Purp. I/O
P4.1 A17
A17
A17
A17
Gen. Purp. I/O Gen. Purp. I/O
P4.2 A18
A18
A18
Gen. Purp. I/O Gen. Purp. I/O Gen. Purp. I/O
P4.3 A19
A19
Gen. Purp. I/O Gen. Purp. I/O Gen. Purp. I/O Gen. Purp. I/O
P4.4 A20
Gen. Purp. I/O Gen. Purp. I/O Gen. Purp. I/O Gen. Purp. I/O Gen. Purp. I/O
Port 4 Pin
P4.5
Altern. Function
CSENA = 0
CS3
Altern. Function
CSENA = 1
Gen. Purp. I/O
Port 5
Port 5 is a 6-bit input port.
P5
Reset Value: 0000_H
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
P5.15 P5.14 -
-
-
-
-
-
-
-
-
- P5.3 P5.2 P5.1 P5.0
rr
rrrr
Bit
P5.y
Function
Port data register P5 bit y (read only).
Alternate Functions of Port 5
Port 5.3 … P5.0 is also connected to the input multiplexer of the A/D Converter. These
lines can accept analog signals (AN3 … AN0) that can be converted by the ADC. Port
5.15 and 5.14 also serve as external timer control lines for GPT1 and GPT2.
Users Manual
6 - 32
2000-06-15