Texas Instruments TMS320C6472 Evaluation Module TMDSEVM6472LE TMDSEVM6472LE 데이터 시트
제품 코드
TMDSEVM6472LE
PRODUCTPREVIEW
SPRS612G
–
JUNE 2009
–
REVISED JULY 2011
3.3.1.2
Device Control Key Register (DEVCTL_KEY)
The device control key register (DEVCTL_KEY) protects against inadvertently updating the DEVCTL
register with errant software. The DEVCTL_KEY register is shown in
register with errant software. The DEVCTL_KEY register is shown in
.
31
0
KEY
R/W-0000 0000 0000 0000
LEGEND: R/W = Read/Write; -n = value after reset
Figure 3-2. Device Control Key Register (DEVCTL_KEY)
To update/write the DEVCTL register:
1. When the correct key value (KEY = 0A1E 183Ah) is written to the DEVCTL_KEY register, the DEVCTL
register becomes amenable for a single write anytime after this.
2. Once the DEVCTL register is written, no further writes to the DEVCTL register are allowed without
repeating Step 1.
The software should disable all the interrupts during the update of the DEVCTL register.
Copyright
©
2009
–
2011, Texas Instruments Incorporated
Device Configuration
65
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