CMT2380F17
Rev0.1 | 333/347
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31 Hardware Option
The MCU’s Hardware Option defines the device behavior which cannot be programmed or controlled by
software. The hardware options can only be programmed by a Universal Programmer, the “Megawin 8051
Writer U1” or the “Megawin 8051 ICE Adapter” (The ICE adapter also supports ICP programming function.
Refer Section “32.4 In-Chip-Programming Function”). After whole-chip erased, all the hardware options are
left in “disabled” state and there is no ISP-memory and IAP-memory configured. The CMT2380F17 has the
following Hardware Options:
LOCK:
: Enabled. Code dumped on a universal Writer or Programmer is locked to 0xFF for security.
: Disabled. Not locked.
ISP-memory
Space
:
The ISP-memory space is specified by its starting address. And, its higher boundary is limited by
the Flash end address, i.e.,
0x3FFF
. The following table lists the ISP space option in this chip. In
default setting, CMT2380F17 ISP space is configured to
1.5K
that had been embedded
Megawin proprietary COMBO ISP code to perform device firmware upgrade through Megawin
1-Line ISP protocol and COM port ISP.
ISP-memory Size
ISP Start Address
7.5K bytes
2200
7.0K bytes
2400
6.5K bytes
2600
6.0K bytes
2800
5.5K bytes
2A00
5.0K bytes
2C00
4.5K bytes
2E00
4.0K bytes
3000
3.5K bytes
3200
3.0K bytes
3400
2.5K bytes
3600
2.0K bytes
3800
1.5K bytes
3A00
1.0K bytes
3C00
0.5K bytes
3E00
No ISP Space
--
HWBS:
: Enabled. When powered up, MCU will boot from ISP-memory if ISP-memory is configured.
: Disabled. MCU always boots from AP-memory.
HWBS2:
: Enabled. Activating the RST-pin can induce MCU to boot from ISP-memory if ISP-memory is
configured.
: Disabled. Where MCU boots from is determined by HWBS.
IAP-memory
Space
:
The IAP-memory space specifies the user defined IAP space. The IAP-memory Space can be
configured by hardware option or MCU software by modifying IAPLB. In default, it is configured to
1K
bytes.
Summary of Contents for CMT2380F17
Page 27: ...CMT2380F17 Rev0 1 27 347 www cmostek com 1 25 Phase Noise...
Page 177: ...CMT2380F17 Rev0 1 177 347 www cmostek com Figure 17 3 PCA Interrupt System...
Page 246: ...CMT2380F17 Rev0 1 246 347 www cmostek com SnMIPS S0MI S1MI 1 P3 3 P4 7...