MMCCMB2107 Freescale, MMCCMB2107 Datasheet - Page 216

• Manufacturer Part Number: MMCCMB2107
• Manufacturer: Freescale

Specifications of MMCCMB2107

• Lead Free Status / RoHS Status: Not Compliant

Non-Volatile Memory FLASH (CMFR)
Technical Data
216
Freescale Semiconductor, Inc.
For More Information On This Product,
Note: Make sure that CMFRMTR is i its reset state at the beginning of the erasing
Non-Volatile Memory FLASH (CMFR)
UPDATE PAWS
IF REQUIRED
process and afterwards.
AND NVR,
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FAILED
Figure 9-9. FLASH Erasing Flowchart
3.1.
3.2.
3.3.
1.
2.
4.
5.
7.
8.
9.
DISABLE PROTECTION OF THE BLOCKS TO BE ERASED
SCLKR[2:0], CLKPE[1:0], CLKPM[6:0] IN CMFRCTL
CONFIGURE CMFR FOR PROGRAM OPERATION
FIELDS FOR A ERASE PULSE (SEE TABLE 9-8)
OVERRIDE FIRMWARE AMPLITUDE MODULATION
NO
EXECUTE AN ERASE INTERLOCK WRITE TO ANY
WRITE THE PULSE WIDTH TIMING CONTROL
ENABLE HIGH-VOLTAGE PULSE FOR ERASING
SELECT ERASE OPERATION AND SELECT
ERASE = 1, BLOCK[7:0] IN CMFRCTL
THE ARRAY BLOCK TO BE ERASED
END OF THE ERASING SEQUENCE
ARRAY LOCATION TO BE ERASED
DISABLE HIGH-VOLTAGE PULSE
PAWS[2:0] = 111 IN CMFRMTR
PROTECT[7:0] IN CMFRMCR
VERIFICATION PROCESS
PULSE APPLIED TO THE
SES = 1 IN CMFRCTL
CMFR ARRAY BLOCK?
EHV = 1 IN CMFRCTL
HVS = 0 IN CMFRCTL
EHV = 0 IN CMFRCTL
SES = 0 IN CMFRCTL
6.
YES
OK
MMC2107 – Rev. 2.0
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