參數(shù)資料
型號: ST92186B3BK
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP32
封裝: PLASTIC, SDIP-32
文件頁數(shù): 146/148頁
文件大?。?/td> 1664K
代理商: ST92186B3BK
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ST92186B - ON SCREEN DISPLAY CONTROLLER (OSD)
OSD CONTROLLER (Cont’d)
7.4.5.6 Event Line
Address in Segment 22h: 00h (Bits 15:8), 01h (Bits 7:0)
EL[8:0] is a 9-bit number specifying at which TV
line number the character row display should start.
For more details refer to Section 7.4.7.8
Bits 15:8: are at address 00h in Segment 22h.
Bits 7:0 are at address 01h
Bits 15:9 are reserved.
7.4.5.7 First Buffer Start Address
Address in Segment 22h: 02h (Bits 15:8), 03h (Bits 7:0)
To handle the display properly, the user must store
the start address of the first OSDRAM row buffer
(the row buffer containing the first row to be dis-
played when the Display controller is turned on).
Two bytes are reserved for this in the OSDRAM.
(See Figure 52).
Bits 15:8 are at address 02h in Segment 22h
Bits 7:0 are at address 03h
Bits 15:9 are reserved.
As row buffer start addresses are always even ad-
dresses, Bit 0 is forced to 0 by hardware.
15
8
7
0
-
EL8
EL7
EL6
EL5
EL4
EL3
EL2
EL1
EL0
15
8
7
0
-
FSA8 FSA7
FSA6
FSA5
FSA4
FSA3
FSA2
FSA1
0
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