Samsung S5PC100, User Manual

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S5PC100 USER’S MANUAL (REV1.0) JPEG
9.4-19
6.16 JPEG Clock Control Register (JPGCLKCON, R/W, Address = 0XEE50_ 006C)
JPGCLKCON Bit Description Reset Value
Reserved [31:2] Reserved 0
CLK_DOWN_READY [1] 0 = Clock is enabled.
1 = JPEG is ready for disabling clock (Default).
This value is changed to 1 if POWER_ON is set as 0 and
JPEG is not working.
This value is changed to 0 if POWER_ON is set as 1.
If this value is 1, JSTART command is ineffective.
This bit is read only.
1
POWER_ON [0] 0 = Disables Clock (Default).
1 = Activates Clock.
0
6.17 JPEG Start Register (JSTART, W, Address = 0XEE50_ 0070)
JSTART Bit Description Reset Value
Reserved [31:1] Reserved 0
JSTART [0] To start compression/ decompression, set this value to 1.
After one clock, it is cleared with 0 internally.
Before starting operation, you must set essential registers.
0
6.18 JPEG Restart Register (JRSTART, W, Address = 0XEE50_ 0074)
JRSTART Bit Description Reset Value
Reserved [31:1] Reserved 0
JRSTART [0] Decompression of JPEG pauses after header analysis. To
restart decompression from pause, set this value to 1. After
one clock, it is cleared with 0 internally.
Before restarting operation, take information of image from
proper registers.
0
6.19 JPEG SW Reset Register (SW_RESET, R/W, Address = 0XEE50_ 0078)
SW_RESET Bit Description Reset Value
Reserved [31:1] Reserved 0
SW_RESET [0] Writing 1 resets JPEG IP.
Before reset finishes, its value is kept as 1.
After reset is done, it is cleared with 0 internally.
Therefore it is necessary to check this value is 0 before
setting registers and starting operation. 0
6.20 JPEG Timer Setting Register(TIME_SE, R/W, Address = 0XEE50_ 007C)
TIMER_SE Bit Description Reset Value