参数资料
型号: MAX7456EUI+T
厂商: Maxim Integrated Products
文件页数: 25/44页
文件大小: 0K
描述: IC DISPLAY 1CH W/EEPROM 28TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: OSD(屏幕显示)视频发生器
应用: 安全系统,视频路由
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 28-TSSOP 裸露焊盘
包装: 带卷 (TR)
Single-Channel Monochrome On-Screen
Display with Integrated EEPROM
Table 4. Character Background Control
SYNC MODE
BACKGROUND MODE,
VM1[7]
LOCAL BACKGROUND
CONTROL BIT, LBC
DMM[5], DMDI[7]
CHARACTER
BACKGROUND PIXEL
0
Input Video
0
1
Gray
External
1
X
Gray
Internal
X
Gray
X = Don’t care.
Display Memory Address High Register
(DMAH)
Write address = 05H, read address = 85H.
Read/write access: unrestricted.
To write to this register, the following condition must be
met:
DMM[2] = 0, the display memory is not in the process
of being cleared.
BIT
DEFAULT
FUNCTION
7–2
0000 00
Don’t Care
10
Byte Selection Bit
This bit is valid only when in the 8-bit operation mode (DMM[6] = 1).
0 = Character Address byte is written to or read (DMDI[7:0] contains the Character Address byte).
1 = Character Attribute byte is written to or read (DMDI[7:0] contains the Character Attribute byte).
00
Display Memory Address Bit 8
This bit is the MSB of the display-memory address. The display-memory address sets the location
of a character on the display (Figure 10). The lower order 8 bits of the display-memory address is
found in DMAL[7:0].
Display Memory Address Low Register
(DMAL)
Write address = 06H, read address = 86H.
Read/write access: unrestricted.
To write to this register, the following condition must be
met:
DMM[2] = 0, the display memory is not in the process
of being cleared.
BIT
DEFAULT
FUNCTION
7–0
0000 0000
Display Memory Address Bits 7–0
This byte is the lower 8 bits of the display-memory address. The display-memory address sets the
location of a character on the display (Figure 10). The MSB of the display-memory address is
DMAH[0].
MAX7456
Maxim Integrated
31
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