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参数资料
型号： MAX6850AEE-T
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： 显示驱动器
英文描述： 4-Wire Interfaced, 7-, 14-, and 16-Segment Alphanumeric Vacuum-Fluorescent Display Controller
中文描述： VACUUM FLUOR DISPLAY DRIVER, PDSO16
封装： 0.150 INCH, 0.25 MM PITCH, MO-137, QSOP-16
文件页数： 6/34页
文件大小： 485K
代理商： MAX6850AEE-T
MAX6850
4-Wire Interfaced, 7-, 14-, and 16-Segment Alpha-
numeric Vacuum-Fluorescent Display Controller
14
______________________________________________________________________________________
COMMAND
ADDRESS
REGISTER
DATA
READ OR
WRITE
FUNCTION
0x85
0x00–0x7F
Read
Read 7-bit user-definable font data entry from current font address. MSB of the
register data is clear. Font address pointer is incremented after the read.
0x05
0x00–0x7F
Write
Write 7-bit user-definable font data entry to current font address. Font address
pointer is incremented after the write.
0x05
0x80–0xFF
Write
Write font address pointer with the register data.
Table 9. Memory Mapping of User-Defined Font Register 0x05
FONT POINTER
ADDRESS
ACTION
0x80 to 0xAE
Valid range to set the font address pointer. Pointer autoincrements after a font data read or write, while pointer
address remains in this range.
0xAF
Further font data is ignored after a font data read or write to this pointer address.
0xB0 to 0xFF
Invalid range to set the font address pointer. Pointer is set to 0x80.
Table 10. Font Pointer Address Behavior
REGISTER DATA
FONT
CHARACTER
POWER-UP
DEFAULT (BIN)
POWER-UP
CHARACTER
COMMAND
ADDRESS
REGISTER
DATA
D7
D6
D5
D4
D3
D2
D1
D0
RAM00 byte 0
111 1110
7-segment 0
0x05
0x80
1
0
00000
0
RAM00 byte 1
000 0000
—
0x05
0x81
1
0
00000
1
RAM01 byte 0
011 0000
7-segment 1
0x05
0x82
1
0
00001
0
RAM01 byte 1
000 0000
—
0x05
0x83
1
0
00001
1
RAM02 byte 0
110 1101
7-segment 2
0x05
0x84
1
0
00010
0
RAM02 byte 1
000 0000
—
0x05
0x85
1
0
00010
1
RAM03 byte 0
111 1001
7-segment 3
0x05
0x86
1
0
00011
0
RAM03 byte 1
000 0000
—
0x05
0x87
1
0
00011
1
RAM04 byte 0
011 0011
7-segment 4
0x05
0x88
1
0
00100
0
RAM04 byte 1
000 0000
—
0x05
0x89
1
0
00100
1
RAM05 byte 0
101 1011
7-segment 5
0x05
0x8A
1
0
00101
0
RAM05 byte 1
000 0000
—
0x05
0x8B
1
0
00101
1
RAM06 byte 0
101 1111
7-segment 6
0x05
0x8C
1
0
00110
0
RAM06 byte 1
000 0000
—
0x05
0x8D
1
0
00110
1
RAM07 byte 0
111 0000
7-segment 7
0x05
0x8E
1
0
00111
0
RAM07 byte 1
000 0000
—
0x05
0x8F
1
0
00111
1
RAM08 byte 0
111 1111
7-segment 8
0x05
0x90
1
0
01000
0
RAM08 byte 1
000 0000
—
0x05
0x91
1
0
01000
1
RAM09 byte 0
111 1011
7-segment 9
0x05
0x92
1
0
01001
0
RAM09 byte 1
000 0000
—
0x05
0x93
1
0
01001
1
RAM10 byte 0
111 0111
7-segment A
0x05
0x94
1
0
01010
0
Table 11. User-Definable Font Pointer Addresses
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