MMC2107 Datasheet, PDF (196/618 Pages) –

Freescale Semiconductor, Inc.
Non-Volatile Memory FLASH (CMFR)
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:
HVS
Write:
0
0
SCLKR2 SCLKR1 SCLKR0
CLKPE1 CLKPE0
Reset: 0
0
0
0
0
0
0
0
Bit 23
22
21
20
19
18
17
Bit 16
Read: 0
Write:
CLKPM6 CLKPM5 CLKPM4 CLKPM3 CLKPM2 CLKPM1 CLKPM0
Reset: 0
0
0
0
0
0
0
0
Bit 15
14
13
12
11
10
9
Bit 8
Read:
BLOCK7 BLOCK6 BLOCK5 BLOCK4 BLOCK3 BLOCK2 BLOCK1 BLOCK0
Write:
Reset: 0
0
0
0
0
0
0
0
Bit 7
6
5
4
3
2
1
Bit 0
Read: 0
1
0
0
RSVD6
ERASE SES
EHV
Write:
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
196
Non-Volatile Memory FLASH (CMFR)
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MMC2107 – Rev. 2.0
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