M306V2 Mitsubishi, M306V2 Datasheet - Page 190

• Manufacturer Part Number: M306V2
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
• Manufacturer: Mitsubishi

190
Figure 2.16.16 Block Diagram of OSD selection circuit
Figure 2.16.15 Clock control register
2.16.4 Clock for OSD
As a clock for display to be used for OSD, it is possible to select one of the following 3 types.
• Data slicer clock output from the data slicer (approximately 26 MHz)
• Clock from the LC oscillator supplied from the pins OSC1 and OSC2
• Clock from the ceramic resonator (or the quartz-crystal oscillator) from the pins OSC1 and OSC2
Note : To use data slicer clock, set bit 0 of data slicer control register 1 to “1.”
Clock control register
b7 b6 b5 b4 b3 b2 b1 b0
0
0
0
Oscillating mode for OSD
Ceramic •
quartz-crystal
0
LC
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
CS2
Data slicer
circuit
“10”
“11”
,
CS1
Bit symbol
Reserved bit
Reserved bits
CS0
CS1
CS2
CS4
Symbol
CS
Data slicer clock
Clock selection bit
R', G', B' signal output
control bit
OSC1 oscillating mode
selection bits
OSC1 clock
Bit name
(See note)
Address
0205
“0”
“1”
16
b2 b1
0: Data slicer clock
1: OSC1 clock
0: R', G', B' output invalid
1: R', G', B' output valid
0 0: Stopped
0 1: Do not set.
1 0: LC oscillating mode
1 1: Ceramic • quartz-crystal
Must always be set to “0”
Must always be set to “0”
CS0
oscillating mode
and ON-SCREEN DISPLAY CONTROLLER
Function
When reset
MITSUBISHI MICROCOMPUTERS
00
16
M306V2ME-XXXFP
OSD control circuit
R W
M306V2EEFP
Rev. 1.0