U-Bus to IMB3 Bus Interface (UIMB)
MPC561/MPC563 Reference Manual, Rev. 1.2
12-6
Freescale Semiconductor
NOTE
Software must poll this register to find out which of the levels 7 to 31 are
asserted.
The UIPEND register contains a status bit for each of the 32 interrupt levels. Each bit of the register is a
read-only status bit, reflecting the current state of the corresponding interrupt signal. For each of the 32
interrupt levels, a corresponding bit of the UIPEND register is set.
shows how the eight interrupt lines are connected to the UIPEND register to represent 32
levels of interrupts.
shows the implementation of the interrupt synchronizer.
Figure 12-6. Interrupt Synchronizer Block Diagram
12.5
Programming Model
lists the registers used for configuring and testing the UIMB module. The address offset shown
in this table is from the start of the block reserved for UIMB registers. As shown in
, this block
begins at offset 0x30 7F80 from the start of the MPC561/MPC563 internal memory map (the last 128-byte
sub-block of the UIMB interface memory map).
Table 12-5. UIMB Interface Register Map
Access
1
Base Address
Register
S
0x30 7F80
UIMB Module Configuration Register (UMCR)
See
for bit descriptions.
—
0x30 7F84 — 0x30 7F8F Reserved
LVL [8:31]
LVL[0:7]
ILBS [0:1]
State
4
IMBCLOCK
UIPEND
RESET
IMB3 LVL [0:7]
Machine
U-bus Interrupt Level[0:7]
OR
24
7
LVL7
8
U-bus
32
Data[0:31]
Register
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...