MN5572 Datasheet, PDF (18/28 Pages) Panasonic Semiconductor – Gray Scale Font Engine

MN5572
I Operation
2. Operating Procedures (continued)
2. 2. Initialization processing example
• Initialization processing flowchart
start
Hardware or software reset
Status register check
(status read)
PMS, RMS = 00, MIS = 1,
CES = 0, CCS = 0
Mask register setup
(mask write)
PM, RM, TM
Initialization completion verification
(status read)
MIS = 0
end
• Initialization processing flowchart example description
The IC registers are initialized by a reset due to either a hardware reset (HRST) or a software reset. And then
memory initialization processing starts automatically.
• Status register check
The values of each parameter are verified by reading the status register.
• Mask register setup
Sets the conditions for the interrupt signal (IRQ) generated by the IC.
If the mask is not set here, interrupts are processed under the initial conditions.
• Initialization completion verification
Completion of the memory initialization processing started automatically after the reset is cleared, is verified
by monitoring a status register parameter (MIS).
Note) When the mask register TM field is set to 1:
In this case, the IC will notify the application that memory initialization processing has completed by issuing an interrupt
signal (IRQ).
In this case, the interrupt is issued after a wait, and then it should be verified that MIS has become 0 by reading the status
register.
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SDF00008BEM