Samsung RCD-750 - IC Pin Descriptions; KS 56 C220 Pinout and Functions

5-3. IC pin description
e@ KS 56C220
Rhone o DDD
Reon oe 6 oe oe
SEGI6 1 FBRL2SSRASRLSW 51 E nsec
SEG17 CJ 2 50 [| —1SEG1
SEG18 C13 59 = SEGO
SEG19 C_] 4 58 P2.0/TCLO
SEG20 5 47 (--7 P2.1
SEG21 6 46 [1 P2.2/CLO
SEG22 7 45 = P2.3/BUZ
SEG23 C18 44 P3.0/LCDCK
P8.0/SEG24 L_]9 43 [-_] P3.1LCDSY
P8.1/SEG25 CL —] 10 KS56C220 42 | 1 P3.2
P8.2/SEG26 LC] 11 41 = P3.3
P8.3/SEG27 12 40 [-—— XTout
P8.4/SEG28 = 13 39 [1 XTin
P8.5/SEG29 14 38 = Xin
P8.6/SEG30 C—] 15 37 Xout
P8.7/SEG31 L-—] 16 36 (1 VDD
COMO C_] 17 35 | INC
COM1 = RESET
COM2 P1.0
rf.
RCD-750
(Dual function as segment output)
OSE EESESSSSLIA
2nSoOR°weReoowns
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NNNWHAS
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— SSS
Pin Name Share | Input/ Function | Reset | VO CKT |
Pin Output Condition Type
P1.0
—
Input
|
4-bit
input
port.
Input
C
P1.1 INT1 1 or 4-bit read/test possible.
P1.2
INT2
4-bit
unit
pull-up
resistors
selectable
by
software.
P1.3 TCL
P2.0
TCLO
1/0
4-bit
I/O
port.
Input
D-A
P2.1 = 1 or 4-bit read/write/test possible.
P2.2 CLO 4-bit unit pull-up resistors selectable by software.
[
P2.3
BUZ
|
|
P3.0 LCDCK VO 4-bit I/O port. Input D-A
P3.1 LCDSY Each individual pin can be specified as input or
P3.2 — output.
P3.3 — 4-bit unit pull-up resistors selectable by software.
(Note)
FP a ee
P6.0 KSO VO 4-bit I/O port. Input D-B
P6.1
KS1
Each
individual
pin
can
be
specified
as
input
or
P6.2 KS2 output. 1 or 4-bit read/write/test possible.
P6.3
KS3
4-bit
unit
pull-up
resistors
selectable
by
software.
(Note) | a
P8.0
-
P8.7
SEG24
Output
|
1-bit
controllable
output.
Low
Level
F-3
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