Integra DTR-7.6 Service Manual page 115

IC BLOCK DIAGRAM AND DESCRIPTION
FL TUBE(HNA-16SM10T)
P4
P3
15G 14G 13G
1G~15G
P1 P2 P3 P4
P6 P7 P8 P9
P11 P12 P13 P14 P15
P16 P17 P18 P19 P20
P21 P22 P23 P24 P25
P26 P27 P28 P29 P30
P31 P32 P33 P34 P35
M66005 (FL tube driver)
BLOCK DIAGRAM
CS 14
Serial
receive
SCK
15
circuit
SDATA
16
XIN 21
Clock
generator
XOUT 20
13
RESET
Vcc1 19
Vcc2 60
Vss 22
Vp 32
P11 P7 P8 P32 P9 P33
P6 P13
12G 11G 10G 9G
M66005 TERMINAL DESCRIPTION
P5
PIN NO. SYMBOL
13
P10
14
15
16
21,
20
1~12
61~64
23~31
33~59
17, 18
19
60
22
32
Display code RAM
Bank 1 : 8bit x 16
Bank 2 : 8bit x 64
code
write
data
Code/
command
control
circuit
timing
Display
clock
controller
P34
P10 P14 P15 P16 P31 P22
P17 P18 P19 P20
8G 7G 6G 5G 4G
PIN NAME DESCRIPTION
RESET Reset input This pin is used to initialize the internal state of the M66005.
"L" : Communication with the MCU is possible.
CS Chip select input
"H" : Any instruction from the MCU is neglected.
SCK Shift clock input At the rising edge from "L" to "H", input data is shifted.
SDATA Serial data input Character code or command data to display is input from MSB.
XIN, Clock input This pin is used to connect a resister and a capacitor externally to
XOUT Clock output set oscillation frequency.
DIG00 ~ Digit output These pins are used to connect to digit pins of VFD.
DIG15
SEG00 ~ Segment output These pins are used to connect to segment pins of VFD.
SEG39
P0, P1 Output port (static operation)
VCC1 Positive power supply for internal logic.
VCC2 Positive power supply for high-pressure-resistant output port.
VSS GND
VP Negative power supply for VFD drive.
CGROM
(35bit x 160)
CGRAM
dot data
(35bit x 16)
write
code
select
scan pulse
2
DTR-7.6
P23 P22 P25 P27
16G
P24 P26
P29
3G 2G 1G
59 SEG00
33 SEG26
Segment
output
circuit
31 SEG27
24 SEG34
SEG35
23
64 DIG12/SEG36
Segment/
Digit
63 DIG13/SEG37
select/
output
62 DIG14/SEG38
circuit
61
DIG15/SEG39
12
DIG00
Digit
output
circuit
1
DIG11
P0
18
P1
17