C8051F93X-C8051F92X 데이터 시트보기 (PDF) - Silicon Laboratories

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C8051F93X-C8051F92X

Single/Dual Battery, 0.9–3.6 V, 64/32 kB, SmaRTClock, 10-Bit ADC MCU

Silicon Laboratories 

C8051F93x-C8051F92x

SFR Definition 15.4. CRC0AUTO: CRC0 Automatic Control

Bit

7

6

5

4

3

2

1

0

Name AUTOEN CRCDONE

CRC0ST[5:0]

Type

R/W

R/W

Reset

0

1

0

0

0

0

0

0

SFR Page = 0xF; SFR Address = 0x96

Bit

Name

Function

7

AUTOEN Automatic CRC Calculation Enable.

When AUTOEN is set to 1, any write to CRC0CN will initiate an automatic CRC

starting at Flash sector CRC0ST and continuing for CRC0CNT sectors.

6 CRCDONE CRCDONE Automatic CRC Calculation Complete.

Set to 0 when a CRC calculation is in progress. Note that code execution is

stopped during a CRC calculation, therefore reads from firmware will always

return 1.

5:0 CRC0ST[5:0] Automatic CRC Calculation Starting Flash Sector.

These bits specify the Flash sector to start the automatic CRC calculation. The

starting address of the first Flash sector included in the automatic CRC calculation

is CRC0ST x 1024.

SFR Definition 15.5. CRC0CNT: CRC0 Automatic Flash Sector Count

Bit

7

6

5

4

3

2

1

0

Name

CRC0CNT[5:0]

Type

R/W

R/W

Reset

0

0

0

0

0

0

0

0

SFR Page = 0xF; SFR Address = 0x97

Bit

Name

7:6

Unused Unused.

Read = 00b; Write = Don’t Care.

Function

5:0 CRC0CNT[5:0] Automatic CRC Calculation Flash Sector Count.

These bits specify the number of Flash sectors to include in an automatic CRC

calculation. The starting address of the last Flash sector included in the automatic

CRC calculation is (CRC0ST+CRC0CNT) x 1024.

Rev. 1.3

173

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