Sanyo DC-007C Service Manual page 13

IC BLOCK DIAGRAM & DESCRIPTION
IC601 M38B57M6-129FP (8-bit Microcomputer)
m.
F.l., #.. A
I
l=,
,...4...
II
mm
I
N1. ma i
c,,-
,", ,Ya, ,,v
r ",WW, r,, , ,"al , 1-
,
",—,
1 P [ IAN
2 P7:IAN:
41 P1 lt-LD
3 P731AN3
8-bif CMOS 1/0 port with the same function as port PO.
42 PI LFLD; 8-bit output port.
4 p72/AN2
CMOS compatible input level.
43
p15/FLD21
A pulldown resistor is built in between port P1 and VEE
5 P711ANI
CMOS 3-state output structure.
44 PI .dFLD20 pin.
6
P70/ANo
45 P131FLD19 High-breakedown-voltage P-channel opendrain output
46 P12/FLD18 SnJcture.
5 bfl m 1/0
rf th the same function as port PO.
P61/cNTRb C-M(3S
compati~e in~ut level.
47 PI 11FLD17 At reset, this port is set to VEE level.
7 /cNTR2
CMOS
3-state output structure.
48
P1OIFLD16
bit IIO pod with the same function as port PO.
CMOS compatible input level.
8 P601CNTR1 N-channel open-drain otiput stmcture.
51 P051FLD13 programmed as either input or output.
l-bit input port.
52 Po4/FLD12 At reset, this port is set to input mode.
9
p47/lfdT2
CMOS compatible input level.
53 P03/FLDII A
ulf-down
resistor is built in between port PO and the
10 RESET
!
Reset input pin for active "L".
54 POtiFLDIO
V E pin.
55 Pol/FLD9
CMOS
mmpatible input level.
2 bt CMOS 1/0 port with the same function as port PO.
11 p91/%ouT
C-MIOScompatible input level.
56 POOIFLD8
High-breakdown-voltage P+hannel opendrain output
12 p91/xCIN
CMOS 3-state output structure.
structure.
At reset, this Port is set to VEE Ieve
r
13 Vss Apply voltage of 4.0- 5.5V to Vcc, and OV to Vss.
14 XIN
Input and output pms for the mam cl
ockyen@ing circuit. '
~~ ~$[~
Feedback resistor is built in between X N pm and XOUT pin.
8-bit l/O port with the same function as port
PO.
When an external clcck used, connect the clcck some to the
60 p24/FLD4 Low-voltage input level.
15 Xour XIN pin and leave the XOUTpin open.
61
p23/FLD3
High-breakedown-voftage P-channel opendrain outpt
The clock is used as the osalfting source of system ckxk.
62 P221FLD2 Struclure.
16 Vcc Apply voftage of 4.0- 5.5V to Vcc, and OV to Vss.
63 P211FLD1
64 P201BUZ021F
LDo
18
p4~30UT
p57/SROY2t
Ml 7-bit 1/0 port with the same function as port PO.
20 P4;Buz01 CMOS compatible input level.
65
SCLK22
66 p56/SCLWl
21 p42/lfdT3 N%hannel opendrain output structure.
22 P41/lNTl
67 P551TxD
8-bit
CMOS l/O port
with the same function as port PO.
23 P40/lNTo
68 p54/RxD CMOS 3-state output structure.
Mot
69 P5Z$SCLKW CMOS compatible input level.
70 P521SCLK1 I
F'8~RTpl/F
4-bit CMOS 1/0 port with the same function as port PO.
71 p51/SOUTl
25 LD38
Low-voltage input level.
72 p50/SINl
26 ;~7RTpoIF
CMOS 3-state output structure.
73 AVSS
Analog power source input pin for A-D
converter.
27
p84/Fl_D36
Connect to Vss
28
VEE
Apply voltage supplied to pull-down resistors of ports ~
. .
74 VREF
Reference voltage input pin for A-D converter.
PI and P3. P651SSTB11
m mtiFLD
blt IiO port with the same function as porf PO.
30 P821FLD3 Low-voltage input level.
75 ANI1
31 P811FLD33 High-breakdown-vo ftage P-channel opendrain output
P6411NT41S 5-f)it CMOS IJO
pOI-I
with the same function as port PO.
32 P801FLD32 struclure.
76 BUSYIIANIO CMOS compatible input level.
CMOS
3-state output structure.
34 P3;FLD:; 8-bit output PO?.
77 P631AN9
35 p35tFLD29 A.pull-down resistor is built in be~een POfl p3 and the VEE
P62/SROYd
36 p34/FLD28 pin.
78 AN8
37 p33/FLD27 High-breakdown-voltage P-channel opendrain output
38 p32/FLD26 structure.
79 P771AN7
8-bit
CMOS l/O port
with the same function as port
PO.
39
P31/FLD25
At reset, this porf is set to VEE level.
80 P76/AN6
CMOS
compatible input level.
40
P30/FLf)24
CMOS 3-state output structure.
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