M35074-002SP Renesas Electronics America, M35074-002SP Datasheet - Page 19

• Manufacturer Part Number: M35074-002SP
• Description: OSD CONTROLLER
• Manufacturer: Renesas Electronics America
• Type: Controllerr

Specifications of M35074-002SP

• Applications: Digital Camera
• Mounting Type: Through Hole
• Package / Case: 20-SDIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

REGISTER SUPPLEMENTARY DESCRIPTION
(1) Setting external clock input and display frequency mode Set-
Fig. 3 Example of external clock input
16
ting external clock input and display frequency mode (by use of
EXCK0, EXCK1 and DIV11 to DIV0 (120
following.
(a) When (EXCK1, EXCK0) = (0, 0) ...... External clock mode 1
(b) When (EXCK1, EXCK0) = (0, 1) ......Internal clock mode
Fosc = 6.3 to 80 MHz (VDD = 4.75V to 5.25V)
Fosc = 6.3 to 40 MHz (VDD = 3.00V to 3.60V)
Input from the TCK pin a constant-period continuous exter-
nal clock that synchronizes with the horizontal synchronous
signal. And input from HOR pin a constant period continu-
ous horizontal synchronous signal.
Never stop inputting the clock while displaying.
Do not have to set a display frequency because the clock just
as it is entered from outside is used as the display clock.
Fosc = 20 to 120 MHz (VDD = 4.75V to 5.25V)
Clock input from the TCK pin is unnecessary. The multiply
clock of the internally generated horizontal synchronous
signal is used as the display clock.
The display frequency is set by setting the multiply value of
the horizontal synchronous frequency (of the display fre-
quency) in DIV11 to DIV0 (address 120
display frequency range. (See the next page.)
Display frequency is calculated using the below expression.
Display frequency =Horizontal synchronous frequency
Horizontal synchronous signal
Multiply value
External clock
16
), as explained here
16
). Also, set the
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
Number of clock (N1)
(c) When (EXCK1, EXCK0) = (1, 0) ...... Setting disabled
(d) When (EXCK1, EXCK0) = (1, 1) ...... External clock mode 2
Fosc = 20 to 120 MHz (VDD = 4.75V to 5.25V)
Input from the TCK pin a constant-period continuous exter-
nal clock that synchronizes with the horizontal synchronous
signal. And input from HOR pin a constant-period continu-
ous horizontal synchronous signal.
Never stop inputting the clock while displaying.
An internal clock which is in sync with the external input
clock is used as the display clock.
Because the display frequency equals the external clock
frequency, set N1 (division value) that satisfies the below
expressions to DIV11 to DIV0 (address 120
display frequency is equal to the external clock frequency.
1H
MITSUBISHI MICROCOMPUTERS
M35074-XXXSP
16
) for make the