mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 518

Manufacturer Part Number

Mcf51jf128 Reference Manual

Manufacturer

Freescale Semiconductor, Inc

Manufacturer

Part Number:

mcf51jf128VLH

Manufacturer:

BOSTOCK HK LIMITED

Part Number:

mcf51jf128VLH

Manufacturer:

BOSTOCK HK LIMITED

Part Number:

mcf51jf128VLH

Manufacturer:

Freescale Semiconductor

BOSTOCK HK LIMITED

Part Number:

mcf51jf128VLH

Manufacturer:

Flash Operation in Low-Power Modes

23.4.9.4 Allowed Simultaneous Flash Operations

Only the operations marked 'OK' in the following table are permitted to run

simultaneously on the program flash, data flash, and FlexRAM memories. Some

operations cannot be executed simultaneously because certain hardware resources are

shared by the memories. The priority has been placed on permitting program flash reads

while program and erase operations execute on the FlexNVM and FlexRAM. This

provides read (program flash) while write (FlexNVM, FlexRAM) functionality.

1. When FlexRAM configured for EEPROM (writes are effectively multi-cycle operations).

2. When FlexRAM configured as traditional RAM (writes are single-cycle operations).

3. When FlexRAM configured as traditional RAM, writes to the RAM are ignored while the Program Section command is

active (CCIF = 0).

Table 23-32. Allowed Simultaneous Memory Operations

Table 23-31. FTFL Commands by Mode (continued)

Program Flash

MCF51JF128 Reference Manual, Rev. 2, 03/2011

Freescale Semiconductor, Inc.