EVB9S12XEP100 Freescale Semiconductor, EVB9S12XEP100 Datasheet - Page 1011

• Manufacturer Part Number: EVB9S12XEP100
• Description: BOARD EVAL FOR MC9S12XEP100
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of EVB9S12XEP100

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MC9S12XEP100
• Data Bus Width: 16 bit
• Interface Type: RS-232
• Silicon Manufacturer: Freescale
• Core Architecture: S12
• Core Sub-architecture: S12
• Silicon Core Number: MC9S12
• Silicon Family Name: S12XE
• Rohs Compliant: Yes
• For Use With/related Products: MC9S12XEP100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26.4.2.22 Partition D-Flash Command
The Partition D-Flash command allows the user to allocate sectors within the D-Flash block for
applications and a partition within the buffer RAM for EEPROM access. The D-Flash block consists of
128 sectors with 256 bytes per sector. The Erase All Blocks command must be run prior to launching the
Partition D-Flash command.
Upon clearing CCIF to launch the Partition D-Flash command, the following actions are taken to define a
partition within the D-Flash block for direct access (DFPART) and a partition within the buffer RAM for
EEE use (ERPART):
Freescale Semiconductor
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•
•
FERSTAT
Register
Validate the DFPART and ERPART values provided:
— DFPART <= 128 (maximum number of 256 byte sectors in D-Flash block)
— ERPART <= 16 (maximum number of 256 byte sectors in buffer RAM)
— If ERPART > 0, 128 - DFPART >= 12 (minimum number of 256 byte sectors in the D-Flash
— If ERPART > 0, ((128-DFPART)/ERPART) >= 8 (minimum ratio of D-Flash EEE space to
Erase verify the D-Flash block and the EEE nonvolatile information register
Program DFPART to the EEE nonvolatile information register at global address 0x12_0000 (see
Table
FSTAT
block required to support EEE)
buffer RAM EEE space to support EEE)
26-7)
CCOBIX[2:0]
Table 26-76. EEPROM Emulation Query Command Error Handling
Table 26-77. Partition D-Flash Command FCCOB Requirements
000
001
010
MGSTAT1
MGSTAT0
EPVIOLIF
ACCERR
Error Bit
FPVIOL
Number of 256 byte sectors for the D-Flash user partition (DFPART)
Number of 256 byte sectors for buffer RAM EEE partition (ERPART)
MC9S12XE-Family Reference Manual , Rev. 1.23
Set if CCOBIX[2:0] != 000 at command launch
Set if a Load Data Field command sequence is currently active
Set if command not available in current mode (see
None
None
None
None
0x20
FCCOB Parameters
Error Condition
Chapter 26 384 KByte Flash Module (S12XFTM384K2V1)
Not required
Table
26-30)
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