MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 459

• Manufacturer Part Number: MPC561MZP56
• Manufacturer: Freescale

Specifications of MPC561MZP56

• Cpu Family: MPC56x
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 56MHz
• Interface Type: QSPI/SCI/SPI/UART
• Total Internal Ram Size: 32KB
• # I/os (max): 56
• Number Of Timers - General Purpose: 22
• Operating Supply Voltage (typ): 2.6/5V
• Operating Supply Voltage (max): 2.7/5.25V
• Operating Supply Voltage (min): 2.5/4.75V
• On-chip Adc: 2(32-chx10-bit)
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 388
• Package Type: BGA
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Lead Free Status / RoHS Status: Not Compliant

Note: This diagram represents the ILBS behavior when IRQMUX[0:1] = 11
The IRQMUX bits determine how many levels of IMB3 interrupts are sampled. Refer to
12.4.4
The interrupt synchronizer latches the 32 levels of interrupts from the IMB3 bus into a register which can
be read by the CPU or other U-bus master. Since there are only eight lines for interrupts on the IMB3 and
32 levels of interrupts are possible, the 32 interrupt levels are multiplexed onto eight IMB3 interrupt lines.
Apart from latching these interrupts in the register (UIPEND), the interrupt synchronizer drives the
interrupts onto the U-bus, where they are latched by the interrupt controller in the USIU.
If IMB3 modules drive interrupts on any of the 24 levels (levels eight through 31), they will be latched in
UIPEND in the UIMB. If any of the register bits 7 to 31 are set, then bit 7 will be set as well.
Freescale Semiconductor
IRQMUX[0:1]
ILBS [0:1]
IMB3 CLOCK
IMB3 LVL[0:7]
Interrupt Synchronizer
00
01
10
11
Figure 12-5. Time-Multiplexing Protocol for IRQ Signals
00, 00, 00.....
00, 01, 00, 01....
00, 01, 10, 00, 01, 10,.....
00, 01, 10, 11, 00, 01, 10, 11,....
ILBS[0:1]
00
01
10
11
00
MPC561/MPC563 Reference Manual, Rev. 1.2
ILBS sequence
Table 12-3. ILBS Signal Functionality
Table 12-4. IRQMUX Functionality
IMB3 interrupt sources mapped onto 0:7 levels will
drive interrupts onto IMB3 LVL[0:7]
IMB3 interrupt sources mapped onto 8:15 levels will
drive interrupts onto IMB3 LVL[0:7]
IMB3 interrupt sources mapped onto 16:23 levels will
drive interrupts onto IMB3 LVL[0:7]
IMB3 interrupt sources mapped onto 24:31 levels will
drive interrupts onto IMB3 LVL[0:7]
01
LVL
[0:7]
10
LVL
[8:15]
16:23
11
LVL
Description
Latch 0:7 IMB3 interrupt levels
Latch 0:15 IMB3 interrupt levels
Latch 0:23 IMB3 interrupt levels
Latch 0:31 IMB3 interrupt levels
24:31
LVL
00
01
LVL
0:7
Description
10
U-Bus to IMB3 Bus Interface (UIMB)
11
Table
12-4.
12-5