S3C72B5 Samsung semiconductor, S3C72B5 Datasheet - Page 10

• Manufacturer Part Number: S3C72B5
• Description: The S3C72B5/C72B7/C72B9 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core/ SAM47 (Samsung A
• Manufacturer: Samsung semiconductor

PRODUCT OVERVIEW
PIN DESCRIPTIONS
1-10
P0.0
P0.1
P0.2
P0.3
P1.0
P1.1
P1.2
P1.3
P2.0
P2.1
P2.2
P2.3
P3.0
P3.1
P3.2
P3.3
P4.0
P4.1
P4.2
P6.0
P6.1
P6.2
P6.3
P7.0–P7.3
P8.0–P8.3
P9.0–P9.3
P10.0–P10.3
P11.0–P11.3
P12.0–P12.3
P13.0–P13.3
SCK
SO
SI
BUZ
K0–K3
K4–K7
Pin Name
Pin Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
Table 1-1. S3C72B5/C72B7/C72B9 Pin Descriptions
4-bit I/O port.
1-bit and 4-bit read/write and test is possible.
4-bit unit pull-up resisters are assignable to input pins
by software and are automatically disabled for output
pins. Each bit pin can be allocated as input or output
(1-bit unit). The N-ch open drain or push-pull output
may be selected by software (1-bit unit).
4-bit input port.
1-bit and 4-bit read and test is possible.
4-bit unit pull-up resistors are assignable to input pins
by software.
4-bit I/O port. 1-bit and 4-bit read/write and test is
possible. I/O function is same as port 0.
4-bit I/O port. 1-bit and 4-bit read/write and test is
possible. I/O function is same as port 0.
3-bit I/O port. I/O function is same as port 0 except
that port 4 is 3-bit I/O port.
4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is
possible. 4-bit unit pull-up resisters are assignable to
input pins by software and are automatically disabled
for output pins. Each bit pin can be allocated as input
or output (1-bit unit). The N-ch open drain or push-
pull output may be selected by software (4-bit unit).
4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is
possible. I/O function is same as port 6, 7.
4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is
possible. I/O function is same as port 6, 7.
4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is
possible. I/O function is same as port 6, 7.
Serial I/O interface clock signal
Serial data output
Serial data input
2, 4, 8, 16 kHz frequency output for buzzer sound
External interrupts with rising/falling edge detection
Description
S3C72B5/C72B7/C72B9/P72B9
Number
47–50
51–54
55–58
59–62
63–66
67–70
71–74
16–19
43–46
16
17
18
19
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
16
17
18
19
SEG75–72
SEG71–68
SEG67–64
SEG63–60
SEG59–56
SEG55–52
SEG51–48
TCLO0/CL
K4/SEG79
K5/SEG78
K6/SEG77
K7/SEG76
Share Pin
P0.0–P0.3
P6.0–P6.3
SCK/K0
BUZ/K3
LCDFR
TCLO1
SO/K1
CLO1
CLO2
SI/K2
TCL0
TCL1
CIN0
CIN1
CIN2
INT0
INT1
INT2
INT4
P0.0
P0.1
P0.2
P0.3
M