TC1796
System Units (Vol. 1 of 2)
General Purpose I/O Ports and Peripheral I/O Lines
User’s Manual 10-18 V2.0, 2007-07
Ports, V2.0
10.3 Port 0
This section describes the Port 0 functionality in detail.
10.3.1 Port 0 Configuration
Port 0 is a general-purpose 16-bit bi-directional port. It serves as GPIO lines without
secondary functions. The logic state of the sixteen Port 0 lines is stored in the SCU
Software Configuration Latched Input Register SCU_SCLIR at the rising edge of HDRST
and can be read by software afterwards. Note that some of the P0.[7:0] lines are used
for configuration purposes, too (see Page 10-25).
Figure 10-4 Port 0 Configuration Diagram
Table 10-6 summarizes the I/O control selection functions of each Port 0 line.
SCU
Register
SCU_SCLIR
MCA05655
P0.8P6.8
P0.9 Control
P0.10 Control
P0.11 Control
P0.12 Control
P0.13 Control
P0.14 Control
P0.15 Control
P0.9
P0.10
P0.11
P0.12
P0.13
P0.14
P0.15
P0.7
P0.7 Control
P0.6
P0.6 Control
P0.5
P0.5 Control
P0.4
P0.4 Control
P0.8 Control
A1
A1
A1
A1
A1
A1
A1
A1
A1
A1
A1
A1
P0.3 Control
A1
P0.2 Control
A1
P0.1 Control
A1
P0.0 Control
A1
P0.0
P0.1
P0.2
P0.3
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