M30218 Datasheet, PDF (54/179 Pages) Mitsubishi Electric Semiconductor – M30218 Group

FLD controller
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
FLD Controller
The M30218 group has fluorescent display (FLD) drive and control circuits.
Table KA-0 shows the FLD controller specifications.
Table KA-0. FLD controller specifications
Item
Specification
FLD
High-breakdown-volt- ^{• 52 pins ( 20 pins can switch general purpose port)}
controller ^{age output port}
port
CMOS port
• 4 pins ( 4 pins can switch general purpose port)
(A driver must be installed externally)
Display pixel number
• Used FLD output
28 segment X 28 digit (segment number + digit number ≤ 56)
• Used digit output
40 segment X 16 digit (segment number ≤ 40, digit number ≤ 16)
• Connected to M35501
56 segment X (connect number of M35501) digit
(segment number ≤ 56, digit number ≤ number of M35501 X 16)
• Used P44 to P47 expansion
52 segment X 16 digit (segment number ≤ 52, digit number ≤ 16)
Period
• 3.2 µs to 819.2 µs (count source XIN/32,10MHz)
• 12.8 µs to 3276.8 µs (count source XIN/128,10MHz)
Dimmer time
• 3.2 µs to 819.2 µs (count source XIN/32,10MHz)
• 12.8 µs to 3276.8 µs (count source XIN/128,10MHz)
Interrupt
• Digit interrupt
• FLD blanking interrupt
Key-scan
• Key-scan used digit
• Key-scan used segment
Expand function
• Digit pulse output function
This function automatically outputs digit pulse.
• M35501 connect function
The number of digits can be increased easily by using the output of
DIMOUT(P97) as CLK for the M35501.
• Toff section generate / not generate function
This function does not generate Toff1 section when the connected outputs
are the same.
• Gradation display function
This function allows each segment to be set for dark or bright display.
• P44 to P47 expansion function
This function provides 16 lines of digit outputs from four ports by attaching a
4 16 decoder.
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