參數(shù)資料
型號(hào): S1D13700F02A100
元件分類: 顯示控制器
英文描述: 320 X 240 PIXELS CRT OR FLAT PNL GRPH DSPL CTLR, PQFP64
封裝: LEAD FREE, TQFP-64
文件頁(yè)數(shù): 52/108頁(yè)
文件大?。?/td> 1373K
代理商: S1D13700F02A100
3: COMMANDS AND COMMAND REGISTERS
S1D13700 Technical Manual
EPSON
43
3.3.3
Drawing Control Commands
qC
This command is used to write the cursor address to the cursor register. Because the S1D13700
has only one address input bit, only two addresses in the address space of the MPU can be
specied at a time. Therefore, the MPU cannot directly access display memory. To compensate
for this inconvenience, the S1D13700 has a 16-bit cursor register that serves the purpose of
MPU addresses.
The cursor address is set in the S1D13700 before display memory (VRAM, CG RAM, or CG
ROM) is automatically accessed. If this address is not set, display starts from the address set last
or an automatically shifted address. (The cursor address register can only be modied by other
than the CSRW command by executing a memory control command.)
The cursor address is not affected by scrolling display because it is managed by the absolute
display memory addresses xed in hardware. Note also that the cursor address points to the
absolute display memory address where data for the origin part of the character field is stored.
qC
This command is used to read a cursor address from the cursor register.When this command is
written to the S1D13700, the low-order byte of the cursor address (CSRL) is set in the output
buffer. Therefore, the high-order byte of the cursor address (CSRH) also can be read out by
entering the RD signal following this command.
Note:
This is the read data.
CSRW
CSRR
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
A7
A6
A5
A4
A3
A2
A1
A0
A15
A14
A13
A12
A11
A10
A9
A8
(CSRL)
(CSRH)
01000110
P2
P1
C
<Indirect mode>
<Direct mode>
Address
––
Register name
0x801C
r_P1_CSRW
0x801D
r_P2_CSRW
bit7-0 : A7-A0
bit7-0 : A15-A8
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
A7
A6
A5
A4
A3
A2
A1
A0
A15
A14
A13
A12
A11
A10
A9
A8
(CSRL) Note
Note
(CSRH)
01000110
P2
P1
C
<Indirect mode>
<Direct mode>
Address
––
Register name
0x801E
r_P1_CSRR
0x801F
r_P2_CSRR
bit7-0 : A7-A0
bit7-0 : A15-A8
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