Port Control; Input/Output Function Selection - Infineon Technologies TC1728 User Manual

Field Bits
SUSREQ 29
ENHW 30
DISCLK 31
0 [27:26]
19.3.4

Port Control

MSC0 clock and data output lines are connected to dedicated differential output drivers.
Some of the MSC0 module I/O lines are connected to I/O ports and therefore controlled
in the port logic (see also
must be executed for these I/O lines:
• Input/output function selection (IOCR registers)
• Pad driver characteristics selection for the outputs (PDR registers)

19.3.4.1 Input/Output Function Selection

The port input/output control registers contain the bit fields that select the digital output
and input driver characteristics such as port direction (input/output) with alternate output
selection, pull-up/down devices, and open-drain selections. The I/O lines for the MSC0
module are controlled by the Port 2 input/output control registers.
Table 19-10 shows in an overview how bits and bit fields must be programmed for the
required I/O functionality of the MSC0 I/O lines.
User's Manual
MSC, V1.37 2009-05
Type Description
rh Suspend Mode Request
Indicates state of SPND signal.
rw Enable Hardware Clock Control
Controls operation of ECEN input and DISCLK bit.
rwh Disable Clock
Hardware controlled disable for
r Reserved
Read as 0; should be written with 0.
Figure 19-29). The following port control operations selections
19-69
Micro Second Channel (MSC)
f
signal.
OUT
TC1728
V1.0, 2011-12