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9.6.2 RESET_b pin enable
After POR reset, PTB6/TCLK0/RESET_b functions as RESET. Other functions are
selected by SIM_MUXPTBH[MUXPTB6]. The pin is a true open-drain output when it is
configured as PTB6. internal pullup can pull the output to logic high if it is enabled.
9.7 System interconnection
This device contains a set of system-level logics for module-to-module interconnection
for flexible configuration.
9.7.1 Inter Module Crossbar Switch (XBAR)
The Inter Module Crossbar Switch module provides a generic mechanism for making
connections between on-chip peripherals as well as between peripherals and pins. It
provides a purely combinational path from input to output. The module groups 16
identical multiplexes with 19 shared inputs.
In general, the crossbar module connects the mcPWM, ADC, Timers, and comparators
together, which allows synchronization between PWM pulse generation and ADC
sampling. In addition, several crossbar inputs and outputs are routed to package pins. For
example, the user can define an XB_INn pin as a PWM fault protection input that is
routed to the PWM module through the crossbar, increasing the flexibility of pin use and
reducing the complexity of PCB layout.
Default XBAR output is connected to logic low.
Customization:
• Primary clock: No
• Alternate clock: No
• The following table summarizes the signal connection of XBAR.
Module
Package Pin
Package Pin
NXP Semiconductors
Table 9-2. XBAR module input signals
from
XBAR_INx
XBAR_IN0
XBAR_IN1
Table continues on the next page...
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
Chapter 9 System Integration Module (SIM)
Function
XB_IN0
XB_IN1
101
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