SDA6000 Datasheet, PDF (147/380 Pages) Infineon Technologies AG – Teletext Decoder with Embedded 16-bit Controller

SDA 6000
System Control & Configuration
Bit
ODP3.y
Function
Port 3 Open Drain control register bit y
ODP3.y = 0: Port line P3.y output driver in push/pull mode.
ODP3.y = 1: Port line P3.y output driver in open drain mode.
Alternate Functions of Port 3
The pins of Port 3 serve various functions which include external timer control lines and
the 3 serial interfaces.
The table below summarizes the alternate functions of Port 3.
Port 3 Pin Alternate Function
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P3.8
P3.9
P3.10
P3.11
P3.12
P3.13
P3.14
P3.15
SCL0
SDA0
CAPIN
T3OUT
T3EUD
T4IN
T3IN
T2IN
MRST
MTSR
TxD0
RxD0
---
SCLK
---
LED2
I²C - bus clock line 0
I²C - bus data line 0
GPT2 capture input
Timer 3 Toggle output
Timer 3 External Up/Down input
Timer 4 Count input
Timer 3 Count input
Timer 2 Count input
SSC Master receive/Slave transmit
SSC Master transmit/Slave receive
ASC0 Transmit data output
ASC0 Receive data input
No alternate function
SSC Shift Clock input/output
Not implemented. No pin assigned!
No alternate function
Port 4
Port 4 is a 6-bit output port. Because of its high frequency requirements in the alternate
function mode, it has different electrical characteristics than the other ports.
During reset, the user specific portion of the system start-up configuration is input via
Port 4. The complete configuration (user specific as well as hardwired settings) can be
read at runtime from register RP0H. For a detailed description refer to Chapter 6.1.
Users Manual
6 - 30
2000-06-15