Mitsubishi S290U, Service Manual, Page: 74 / 190

7
IC7A1 ADC0838CCWM
∑
ANALOG
MUX
(EQUIVALENT)
START SGL/DIF ODD/SIGN SELECT1 SELECT0
C
D
R R R R R
MUX
ADDRESS
5 BIT SHIFT REGISTER
VCC
B7
B6
B5
B4
B3
B2
B1
B0
8-BIT
SHIFT
REGISTER
SAR
LOGIC
AND
LATCH
EOC
COMP EOC
CS
R R C
COMP
LSB FIRST
ONE
SHOT
PARALLEL
XFR TO
SHIFT REG
MSB FIRST
C
C
F1
C
L
Q R CS
L2
C
L Q
R
L1
C
L
Q
R
CS
TD
TIME
DELAY
CS
CS
COMP
LADDER
AND
DECODER
TO INTERNAL
CIRCUITRY
7V ZENER
7V ZENER INPUT
Vcc
R
TO
INTERNAL
CIRCUITS
13
16
17
18
INPUT PROTECTION - ALL LOGIC INPUTS
START CONV AND ENABLE
TSL OUTPUT BUFFER
17
18
16
1
2
3
4
5
6
7
8
9
12
20
19
10
11
14
15
13
SARS*
DO
D1
CLK
CH0*
CH1*
CH2*
CH3*
CH4*
CH5*
CH6*
CH7*
COM*
D GND*
A GND
+
V *
V
REF
V
CC
*Some of these functions/plns are not avallable with other options.
CS
SE*
START
IC7A8 XC62FP4002PR
VSS
VOUT VIN
2
3
1
Voltage Source
Voltage Limitter
IC7A0,7A2,7A3 M62320FP
12
D7
11
D6
10
D5
9
D4
7
D3
6
D2
5
D1
4
D0
I/O PORT
DIRECTIONAL
REGISTER OUTPUT DATA
LATCH INPUT DATA
LATCH
8 8
8
Input Data
Output Data
Input/Output
8 8
SHIFT REGISTER
8
I C BUS
INTERFACE 2
POWER ON
RESET
Reset
13
8
V
DD
GND
2
3
SCL
SDA
16 15
14
CS0 CS1 CS2
1
SO
IC7A7 USBRCV
1
P0.0
2
P0.1
3
P0.2
4
P0.3
20
P0.4
19
P0.5
18
P0.6
17
P0.7
PORT
0
USB
ENGINE
5
P1.0
16
P1.1
6
P1.2 P1.3
15 7
V
SS
12
V
CC
13
D-
14
D+
PORT
1
INTERRUPT
CONTROLLER
WATCH
DOG
TIMER
POWER
ON RESET
8-bit
TIMER
RAM
128 Byte
8-bit
RISC
CORE
EPROM
2K/4K Byte
TM
INSTANT-ON
NOW
OSC
9
R/C
EXT
11 10
XTALIN XTALOUT
6 MHz
CERAMIC RESONATOR/
CRYSTAL
PCB-MAIN MICON
IC BLOCK DIAGRAMS