MAX9260 Maxim, MAX9260 Datasheet - Page 37

• Manufacturer Part Number: MAX9260
• Description: The MAX9259/MAX9260 chipset presents Maxim's gigabit multimedia serial link (GMSL) technology
• Manufacturer: Maxim

Figure 31. MAX9260 State Diagram, CDS = Low (LCD Application)
For image-sensing applications, with remote camera
unit(s), connect the FC to the deserializer (MAX9260)
and set CDS = high for both the MAX9259 and MAX9260.
The MAX9260 powers up normally (SLEEP = 0) and con-
tinuously tries to lock to a valid serial input. Table 14
summarizes the two startup cases, based on the state of
the MAX9259 AUTOS pin.
After power-up, or when PWDN transitions from low to
high, the MAX9259 locks to a stable PCLKIN and sends
the high-speed data to the MAX9260. The MAX9260
locks to the serial data and outputs the parallel video
data and PCLKOUT.
Table 14. Startup Selection for Image-Sensing Applications (CDS = High)
CASE
SETTING
1
2
MS PIN
SEND INT TO
HIGH
LOW
MAX9259
Gigabit Multimedia Serial Link with Spread
Spectrum and Full-Duplex Control Channel
POWER-UP VALUE
(MAX9259)
AUTOS
SLEEP BIT
High
Low
______________________________________________________________________________________
INT CHANGES FROM
0
1
SERIAL LINK ACTIVITY STOPS OR 8ms ELAPSES AFTER
LOW TO HIGH OR
HIGH TO LOW
Image-Sensing Applications
FC SETS SLEEP = 1
MAX9259 POWER-UP
Serialization enabled
SLEEP
Case 1: Autostart Mode
ALL STATES
Sleep mode
(SLEEP = 1)
STATE
WAKE-UP
SIGNAL
SLEEP = 1, VIDEO LINK OR CONFIG
PWDN = LOW OR
LINK NOT LOCKED AFTER 8ms
POWER-OFF
POWER-ON
POWER-DOWN
IDLE
MAX9260 POWER-UP
POWER-OFF
OR
PWDN = HIGH,
POWER-ON
After power-up, or when PWDN transitions from low to
high, the MAX9259 starts up in sleep mode. To wake up
the MAX9259, use the FC to send a regular UART frame
containing at least three rising edges (e.g., 0x66), at a
bit rate no greater than 1Mbps. The low-power wake-up
receiver of the MAX9259 detects the wake-up frame over
the reverse control channel and powers up. Reset the
sleep bit (SLEEP = 0) of the MAX9259 using a regular
control-channel write packet to power up the device fully.
Send the sleep bit write packet at least 500Fs after the
wake-up frame. The MAX9259 goes back to sleep mode
if its sleep bit is not cleared within 8ms (typ) after detect-
ing a wake-up frame.
(SLEEP = 0)
(SLEEP = 0)
STATE
Normal
Normal
DETECTED
SIGNAL
VIDEO LINK
LOCKED
VIDEO LINK
OPERATING
SERIAL PORT
0
LOCKING
Autostart
MAX9259 is in sleep mode. Wake
up the MAX9259 through the control
channel (FC attached to MAX9260).
SLEEP
PRBSEN = 0
PRBSEN = 1
LINK STARTUP MODE
CONFIG LINK
CONFIG LINK
UNLOCKED
LOCKED
VIDEO LINK
UNLOCKED
Case 2: Sleep Mode
VIDEO LINK
PRBS TEST
CONFIG LINK
OPERATING
REGISTERS
PROGRAM
0
SLEEP
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