MPC562 Freescale Semiconductor, Inc, MPC562 Datasheet - Page 10

• Manufacturer Part Number: MPC562
• Description: Mpc562 32 Bit Powerpc Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Additional MPC561/MPC563 Differences
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One keep-alive power pin (IRAMSTBY) provides keep-alive power to RAM.
The IRAMSTBY pin can be powered directly from a battery using an internal shunt regulator or via a small
battery for standby use. See Figure 2.
While power is off to the MPC561/MPC563 , the IRAMSTBY supply powers the following:
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The internal memory map is organized as a single 4-Mbyte block. The user can assign this block to one of
eight locations by programming a register in the USIU (IMMR[ISB]). The eight possible locations are the
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READI
— New module
USIU
— Enhanced interrupt controller
— ENGCLK default frequency
— READI support
— Reduced data setup time
— Enhanced external burst support
MIOS14
— Four additional PWM channels
— Four additional MCSM timers
DPTRAM (8 Kbytes)
— No functional changes
PPM (peripheral pin multiplexing)
— New module
— Four-to-one multiplexing
— Parallel to serial (SPI and TDM)
32-Kbyte CALRAM
8-Kbyte DPTRAM module
2-Kbyte BBC DECRAM module
SRAM Keep-Alive Power Behavior
MPC561/MPC563 Address Map
Figure 2. Recommended Connection Diagram for IRAMSTBY
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC561/MPC563 Product Brief
To Battery
Go to: www.freescale.com
R
C
To IRAMSTBY Pad
MOTOROLA