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R61509V Target Spec
Rev. 0.11 April 25, 2008, page 46 of 181
Display Control 2 (R008h)
FP[7:0]: Sets the number of lines for front porch period (a blank period made after the end of display).
BP[7:0]: Sets the number of lines for back porch period (a blank period made before the beginning of
display).
In external display interface operation, a back porch (BP) period starts on the falling edge of the VSYNCX
signal and the display operation starts after the back porch period. After the front porch period, a blank
period continues until next VSYNCX input is detected.
Table 13
FP [7:0]
BP [7:0]
Number of front porch line
Number of back porch line
8’h00 Setting inhibited Setting inhibited
8’h01 Setting inhibited Setting inhibited
8’h02 Setting inhibited 2 lines
8’h03 3 lines 3 lines
8’h04 4 lines 4 lines
8’h05 5 lines 5 lines
8’h06 6 lines 6 lines
8’h07 7 lines 7 lines
8’h08 8 lines 8 lines
8’h09 9 lines 9 lines
8’h0A 10 lines 10 lines
8’h0B 11 lines 11 lines
8’h0C 12 lines 12 lines
8’h0D 13 lines 13 lines
8’h0E 14 lines 14 lines
8’h0F 15 lines 15 lines
： ： ：
8’h7F 127 lines 127 lines
8’h80 128 lines 128 lines
8’h81 Setting inhibited Setting inhibited
： ： ：
8’hFF Setting inhibited Setting inhibited
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
R/W 1
FP
[7]
FP
[6]
FP
[5]
FP
[4]
FP
[3]
FP
[2]
FP
[1]
FP
[0]
BP
[7]
BP
[6]
BP
[5]
BP
[4]
BP
[3]
BP
[2]
BP
[1]
BP
[0]
Default 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0