System Integration Unit (SIU)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
6-6
Freescale Semiconductor
Preliminary
provides absolute addresses for the SIU_PCR and SIU_GPDO registers.
0x0908–0x090B SIU_ISEL2 — IMUX Select Register 2
R/W
0x0000_0000
0x090C–0x097F Reserved
0x0980–0x0983
SIU_CCR — Chip Configuration Register
R/W
0x000U_0000
0x0984–0x0987
SIU_ECCR — External Clock Control Register
R/W
0x0000_1001
0x0988–0x098B SIU_CMPAH — Compare A High Register
R/W
0x0000_0000
0x098C–0x098F SIU_CMPAL — Compare A Low Register
R/W
0x0000_0000
0x0990–0x0993
SIU_CMPBH — Compare B High Register
R/W
0x0000_0000
0x0994–0x0997
SIU_CMPBL — Compare B Low Register
R/W
0x0000_0000
0x0998–0x099B Reserved
0x09A0–0x09A3 SIU_SYSCLK — System Clock Register
R/W
0x0000_0000
0x09A4–0x09A7 SIU_HLT — Halt Request
R/W
0x0000_0000
0x09A8–0x09AB SIU_HLTACK — Halt Acknowledge
R
0x0000_0000
0x09AC–0x0BFF Reserved
0x0C00–0x0C13 SIU_PGPDO0 – SIU_PGPDO4 — Parallel GPIO Pin Data
Output Register 0 – Parallel GPIO Pin Data Output Register 4
R/W
0x0000_0000
0x0C14–0x0C3F Reserved
0x0C40–0x0C53 SIU_PGPDI0 – SIU_PGPDI4 — Parallel GPIO Pin Data Input
Register 0 – Parallel GPIO Pin Data Input Register 4
R/W
0x0C54–0x0C83 Reserved
0x0C84–0x0CA3 SIU_MPGPDO1 – SIU_MPGPDO8 — Masked Parallel GPIO
Pin Data Output Register 1 – Masked Parallel GPIO Pin Data
Output Register 8
R
0x0000_0000
1
See register description for reset value.
2
Gaps exist in this memory space where I/O pins are not available in the specified package.
Table 6-2. Detailed Memory Map for SIU_PCR, SIU_GPDO, and SIU_GPDI
Pad ID
Pad #
SIU_PCR
Address
SIU_GPDO
Address
SIU_GPDI
Address
PA0
0
FFFE8040
FFFE8800
PA1
1
FFFE8042
FFFE8801
PA2
2
FFFE8044
FFFE8802
PA3
3
FFFE8046
FFFE8803
PA4
4
FFFE8048
FFFE8804
Table 6-1. SIU Memory Map
Offset from
SIU_BASE
(0xFFFE_8000)
Register
Access
Reset Value
Section/Page