MPC564MZP66 Freescale Semiconductor, MPC564MZP66 Datasheet - Page 897

• Manufacturer Part Number: MPC564MZP66
• Description: IC MCU 512K FLASH 66MHZ 388-BGA
• Manufacturer: Freescale Semiconductor
• Series: MPC5xxr

Specifications of MPC564MZP66

• Core Processor: PowerPC
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 56
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 2.7 V
• Data Converters: A/D 32x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 388-BGA
• For Use With: MPC564EVB - KIT EVAL FOR MPC561/562/563/564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Chapter 22
CALRAM Operation
The calibration static random access memory (CALRAM) module provides the MPC561/MPC563 with a
general purpose memory that may be read from or written to as either bytes, half-words, or words. In
addition to this, a portion of the CALRAM, called the overlay region, can be used for calibration.
Calibration in this context is defined as overlaying portions of the U-bus Flash with a portion of the
CALRAM array. During normal Flash access, the RISC central processing unit (RPCU) reads data from
U-bus Flash (through L-bus and L2U) as shown in
providing the data, the overlay regions of CALRAM provide the data to the RPCU.
22.1
Standard CALRAM features are listed below:
Special overlay features are:
Freescale Semiconductor
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One-clock accesses
— Two-cycle access for power savings
Byte, half-word (16-bits), or word (32-bit) read/write accesses
Each 8-Kbyte block has individual protection control bits.
Low power standby operation for data retention
Eight overlay regions; each can be programmed to be 4-, 16-, 32-, 64-, 128-, 256-, or 512-bytes
long
Each overlay region size can be forced to 4 bytes long
Data driven from the CALRAM module for overlay access has the same timing as the data that
would have come from the U-bus Flash
Overlay is for data read from the U-bus Flash space and does not affect instruction fetches from
the Flash
Overlay block is naturally aligned
— For example, 128-byte block is 128-byte aligned
Normal access to overlaid portion of CALRAM array can be made to generate an error (machine
check) if so configured
Features
MPC561/MPC563 Reference Manual, Rev. 1.2
Figure
22-1. During calibration access, instead of Flash
22-1