C2Fpctl: C2 Flash Programming Control; C2Fpdat: C2 Flash Programming Data - Silicon Laboratories EFM8 Series Reference Manual

23.4.4 C2FPCTL: C2 Flash Programming Control

Bit 7
Name
Access
Reset
C2 Address: 0x02
Bit Name
7:0 C2FPCTL
This register is used to enable flash programming via the C2 interface. To enable C2 flash programming, the following co-
des must be written in order: 0x02, 0x01. Note that once C2 flash programming is enabled, a system reset must be issued
to resume normal operation.

23.4.5 C2FPDAT: C2 Flash Programming Data

Bit 7
Name
Access
Reset
C2 Address: 0xB4
Bit Name
7:0 C2FPDAT
This register is used to pass flash commands, addresses, and data during C2 flash accesses. Valid commands are listed
below.
0x03: Device Erase
0x06: Flash Block Read
0x07: Flash Block Write
0x08: Flash Page Erase
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6 5
Reset Access Description
0x00 RW Flash Programming Control Register.
6 5
Reset Access Description
0x00 RW C2 Flash Programming Data Register.
C2 Debug and Programming Interface
4 3
C2FPCTL
RW
0x00
4 3
C2FPDAT
RW
0x00
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