参数资料
型号: ST72T774S9T1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP44
封装: TQFP-44
文件页数: 141/144页
文件大小: 1280K
代理商: ST72T774S9T1
ST72774/ST727754/ST72734
96/144
DDC INTERFACE (Cont’d)
Figure 57. DDC Interface Block Diagram
DATA REGISTER (DR)
DATA SHIFT REGISTER
COMPARATOR
STATUS REGISTER 1 (SR1)
DDC/CI-Factory CONTROL REGISTER (CR)
CONTROL LOGIC
STATUS REGISTER 2 (SR2)
INTERRUPT
DATA CONTROL
SCLD
SDAD
(DDC/CI (for MONITOR ADJUSTMENT and CONTROL)
DDC1/2B (for MONITOR IDENTIFICATION)
ADDRESS HIGH REGISTER (AHR)
DATA CONTROL
OWN ADDRESS REGISTER (OAR)
DDC
ADDRESS LOW REGISTER (ALR)
CONTROL LOGIC
DDC1/2B
INTERRUPT
HWDDC
CONTROLLER
DMA
CONTROL LOGIC
ADDRESS/DATA
DATA SHIFT REGISTER
DDC1/2B CONTROL REGISTER (DCR)
VSYNCI
VSYNCI2
Bit in
MISCR
Register
HARDWARE ADDRESS
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