Unified System Interface Unit (USIU) Overview
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
5-7
shows the MPC561/MPC563 address format for special purpose register access. For an external
master, accessing an MPC500 SPR, address bits [0:17] and [28:31] are compared to zeros to confirm that
an SPR access is valid. See
Section 6.1.2.1, “Operation in External Master Modes
,” for more details.
.
Table 5-2. USIU Special-Purpose Registers
Internal
Address[0:31]
Register
Decimal Address
spr[5:9]:spr[0:4]
1
1
Bits [0:17] and [28:31] are all 0.
0x2C00
Decrementer (DEC).
See
Section 3.9.5, “Decrementer Register
,” for more information.
22
0x1880
Time Base Lower — Read (TBL).
See
Section 6.2.2.4.2, “Time Base SPRs (TB)
,”
for bit descriptions.
268
0x1A80
Time Base Upper — Read (TBU).
See
Section 6.2.2.4.2, “Time Base SPRs (TB)
,”
for bit descriptions.
269
0x3880
Time Base Lower — Write (TBL).
SeeSee
Section 6.2.2.4.2, “Time Base SPRs
,” for bit descriptions.
284
0x3A80
Time Base Upper — Write (TBU).
See
Section 6.2.2.4.2, “Time Base SPRs (TB)
,”
for bit descriptions.
285
0x3D30
Internal Memory Mapping Register (IMMR).
See
for bit descriptions.
638
Table 5-3. Hex Address Format for SPR Cycles
A[0:17]
A[18:22]
A[23:27]
A[28:31]
0
spr5:9
spr0:4
0
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...