MMC2107 - Freescale Semiconductor

Non-Volatile Memory FLASH (CMFR)
Freescale Semiconductor, Inc.
9.7.1.3 CMFR High-Voltage Control Register
The CMFR high-voltage control register (CMFRCTL) controls the
program and erase operations of the CMFR.
Address: 0x00d0_0008 through 0x00d0_000b
Bit 31 30 29 28 27 26 25 Bit 24
Read:
Write:
HVS
0
SCLKR2 SCLKR1 SCLKR0
0
CLKPE1
CLKPE0
nc...
Freescale Semiconductor, I
Reset: 0 0 0 0 0 0 0 0
Read: 0
Write:
Bit 23 22 21 20 19 18 17 Bit 16
CLKPM6 CLKPM5 CLKPM4 CLKPM3 CLKPM2 CLKPM1 CLKPM0
Reset: 0 0 0 0 0 0 0 0
Read:
Write:
Bit 15 14 13 12 11 10 9 Bit 8
BLOCK7 BLOCK6 BLOCK5 BLOCK4 BLOCK3 BLOCK2 BLOCK1 BLOCK0
Reset: 0 0 0 0 0 0 0 0
Read: 0
Write:
Bit 7 6 5 4 3 2 1 Bit 0
RSVD6
1 0 0
ERASE SES EHV
Reset: 0 0 1 0 0 0 0 0
= Writes have no effect and the access terminates without a transfer error exception.
Figure 9-5. CMFR High-Voltage Control Register (CMFRCTL)
HVS — High Voltage Status Bit
The read-only HVS bit reflects the status of the program/erase pulse.
Writing to HVS has no effect. HVS is set when a pulse is active and
during recovery. While HVS = 1, accesses to the array cause a bus
error, and SES cannot be changed. The pulse becomes active when
the EHV bit is set and is terminated by clearing EHV or by the pulse
width timing control. See Figure 9-6.
1 = Pulse applied to array or CMFR in recovery
0 = Pulse not applied to array
Technical Data MMC2107 – Rev. 2.0
196 Non-Volatile Memory FLASH (CMFR) MOTOROLA
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