PXR40RM Datasheet, PDF (189/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

System Integration Unit (SIU)
7.3 Memory Map and Register Definition
Table 7-5 is the address map for the SIU registers. All register addresses shown are an offset of the SIU
base address.
Table 7-5. SIU Memory Map
Address
Register
Bits Access Reset Value Section/Page
SIU_BASE = 0xC3F9_0000
Reserved
SIU_BASE + 0x0004
SIU_MIDR—MCU ID register
32
SIU_BASE + 0x0008
Reserved
SIU_BASE + 0x000C
SIU_RSR—Reset status register
32
SIU_BASE + 0x0010
SIU_SRCR—System reset control
32
register
SIU_BASE + 0x0014
SIU_EISR—SIU external interrupt
32
status register
SIU_BASE + 0x0018
SIU_DIRER—DMA/interrupt request 32
enable register
SIU_BASE + 0x001C
SIU_DIRSR—DMA/interrupt request 32
select register
SIU_BASE + 0x0020
SIU_OSR—Overrun status register
32
SIU_BASE + 0x0024
SIU_ORER—Overrun request enable 32
register
SIU_BASE + 0x0028
SIU_IREER—IRQ rising-edge event
32
enable register
SIU_BASE + 0x002C
SIU_IFEER—IRQ falling-edge event 32
enable register
SIU_BASE + 0x0030
SIU_IDFR—IRQ digital filter register 32
SIU_BASE + 0x0034
SIU_IFIR—IRQ Filtered Input Register 32
SIU_BASE + (0x0038–0x003F) Reserved
SIU_BASE + (0x0040–0x043E) SIU_PCR0 – SIU_PCR511— Pad
16
configuration registers 0–511
SIU_BASE + (0x0440–0x05FF) Reserved
SIU_BASE + (0x0600–0x07FF) SIU_GPDO0 – SIU_GPDO511—
8
GPIO pin data output registers 0–511
SIU_BASE + (0x0800–0x08FF) SIU_GPDI0 – SIU_GPDI255— GPIO 8
input data registers 0–255 (Legacy
support only, new implementation at
SIU_BASE + 0x0E00)
SIU_BASE + (0x0900–0x0903) Reserved
R
0x5674_6000 7.3.1.1/7-10
0r
0x5674_E000
R/W
0x8000_U 7.3.1.2/7-11
R/W 0x0000_8000 7.3.1.3/7-15
R/w1c 0x0000_0000 7.3.1.4/7-15
R/W 0x0000_0000 7.3.1.5/7-16
R/W 0x0000_0000 7.3.1.6/7-17
R/W 0x0000_0000 7.3.1.7/7-18
R/W 0x0000_0000 7.3.1.8/7-19
R/W 0x0000_0000 7.3.1.9/7-20
R/W 0x0000_0000 7.3.1.10/7-21
R/W 0x0000_0000 7.3.1.11/7-22
R/W 0x0000_0000 7.3.1.12/7-22
R/W See SIU_PCRn 7.3.1.13/7-24
Settings table
for reset values
R/W
0x00
7.3.1.14/7-40
R
0x00
7.3.1.15/7-40
PXR40 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor
7-7