PXR40RM Datasheet, PDF (184/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

System Integration Unit (SIU)
7.1.1 Block Diagram
Figure 7-1 is a block diagram of the SIU. The SIU registers are accessed using the crossbar switch.
Pad configuration
Power-on
reset
detection
SIU
registers
IRQ inputs,
DSPI signals
•••
Reset
controller
External
IRQ/
edge
detects
•••
Reset
configuration
•••
Pad
Interface/
Pad
Ring
GPIO
•••
•••
IMUX
•••
Peripheral
I/O channels
RESET
RSTOUT
IRQ[0]
••
IRQ[15]
BOOTCFG[0]
BOOTCFG[1]
WKPCFG
GPIO[n]
D_CS[0]
D_CS[2]
D_CS[3]
PLLCFG[0]
PLLCFG[1]
PLLCFG[2]
Figure 7-1. SIU Block Diagram
NOTE
The power-on reset detection module, pad interface/pad ring module, and
peripheral I/O channels shown shaded in Figure 7-1 are external to the SIU.
PXR40 Microcontroller Reference Manual, Rev. 1
7-2
Freescale Semiconductor