參數(shù)資料
型號: S1D13700
廠商: 愛普生(中國)有限公司
英文描述: Embedded Memory Graphics LCD Controller
中文描述: 嵌入式內存圖形液晶顯示控制器
文件頁數(shù): 64/134頁
文件大小: 1000K
代理商: S1D13700
Page 64
Epson Research and Development
Vancouver Design Center
S1D13700
X42A-A-001-00
Hardware Functional Specification
Issue Date: 2004/01/06
Revision 1.0
CSRDIR
The CSRDIR command controls cursor movement when indirect addressing is used. The
values from REG[17h] are passed as part of the command when the CSRDIR command is
issued. For further information on the CSRDIR command, see Section 11.1.6, “CSRDIR”
on page 76.
bits 1-0
Cursor Shift Direction bits [1:0]
These bits set the direction of automatic cursor increment when the cursor is automatically
moved after a memory access (read or write). The cursor can move left/right by one char-
acter or up/down by the number of bytes specified by the horizontal address range (or
address pitch), REG[06h] - REG[07h]. When reading from and writing to display mem-
ory, this automatic cursor increment controls the display memory address increment on
each read or write.
Figure 10-8 Cursor Direction
Note
The cursor moves in address units even if horizontal character size is equal to 9
(REG[01h] bits 3-0 = 9), therefore the cursor address increment must be preset for
movement in character units. For further information, see Section 12.3, “Cursor Con-
trol” on page 86.
REG[17h] Cursor Shift Direction Register
Address = 8017h
Read/Write
n/a
Cursor Shift Direction bits 1-0
7
6
5
4
3
2
1
0
Table 10-8 Cursor Shift Direction
Direct Mode
Indirect Mode
Command
Shift Direction
Bit 1
Bit 0
0
0
4C
Right
0
1
4D
Left
1
0
4E
Up
1
1
4F
Down
10
11
00
01
–1
+1
+AP
–AP
AP = Horizontal Address Range
(REG[06h] bits 7-0, REG[07h] bits 7-0)
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