MMC2107 - Freescale Semiconductor

Freescale Semiconductor, Inc.
Non-Volatile Memory FLASH (CMFR)
Functional Description
1.
MAKE SURE CMFRMTR AND CMFRCTL
ARE IN THEIR RESET STATES
2.
SET PAWS [2] = 1 AND GDB = 1 IN THE CMFRMTR
3.
DISABLE PROTECTION OF THE BLOCKS
TO BE PROGRAMMED
PROTECT[7:0] IN CMFRMCR
4.
WRITE THE PULSE WIDTH TIMING CONTROL FIELDS
FOR A PROGRAM PULSE (SEE TABLE 9-8)
SCLKR[2:], CLKPE[1:], CLKPM[6:0] IN CMFRCTL
nc...
5.
SELECT PROGRAM OPERATION AND SELECT
THE ARRAY BLOCK TO BE PROGRAMMED
ERASE = 0, BLOCK[7:0] IN CMFRCTL
Freescale Semiconductor, I
11a.
11b.
11c.
UPDATE CLKPE,
CLKPM, PAWS,
AND NVR IF NEEDED
FAILED
6.
7.
8.
10.
11.
12.
CONFIGURE CMFR FOR PROGRAM OPERATION
SES = 1 IN CMFRCTL
WRITE 64 BYTES OF DATA TO THE LOCATION
TO BE PROGRAMMED
ENABLE HIGH-VOLTAGE PULSE FOR PROGRAMMING
EHV = 1 IN CMFRCTL
NO
9.
PULSE APPLIED TO THE
CMFR ARRAY BLOCK?
HVS = 0 IN CMFRCTL
YES
DISABLE HIGH-VOLTAGE PULSE
EHV = 0 IN CMFRCTL
VERIFICATION PROCESS
OK
END OF THE PROGRAMMING SEQUENCE
SES = 0 IN CMFRCTL
13.
YES
PROGRAM NEXT PAGE?
NO
FINISH
Notes:
1. This page program algorithm assumes the blocks to be programmed are initially erased.
2. Make sure that CMFRMTR is in its reset state at the beginning of the programming process and afterwards.
Figure 9-7. FLASH Programming Flowchart
MMC2107 – Rev. 2.0
Technical Data
MOTOROLA Non-Volatile Memory FLASH (CMFR) 209
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