Регистры H616: TV Safe Period Register

TV_SAFE_PERIOD_REG

7.1.5. TV Safe Period Register - адрес: 0x65151f0 0x65161f0 (смещение: 0x01F0)

Контроллер синхронизации: список регистров

31 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 16
15 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 00

Unused

Bits 31 : 29

SAFE_PERIOD_FIFO_NUM

Bits 28 : 16
R/W
0x0

When the data length in line buffer is more than
SAFE_PERIOD_FIFO_NUM,LCD controller will allow dram controller to stop
working to change frequency.

SAFE_PERIOD_LINE

Bits 15 : 4
R/W
0x0

Set a fixed line and during the line time,LCD controller allow dram controller
to change frequency.The fixed line should be set in the blanking area.

Unused

Bit 3

SAFE_PERIOD_MODE

Bits 2 : 0
R/W
0x0

Select the save mode
000: unsafe
001: safe
010: safe at FIFO_CURR_NUM > SAFE_PERIOD_FIFO_NUM
011: safe at 2 and safe at sync active
100: safe at line

Bit fields structure

typedef union tv_safe_period_reg { struct { unsigned safe_period_mode : 3; unsigned unused0 : 1; unsigned safe_period_line : 12; unsigned safe_period_fifo_num : 13; unsigned unused1 : 3; } b; unsigned long w; } TV_SAFE_PERIOD_REG