Samsung S3C8625, S3C8627, S3C8629, S3P8629 Datasheet

Product Overview

Address Spaces

Addressing Modes

Control Registers

Interrupt Structure

Instruction Set

S3C8625/C8627/C8629/P8629 PRODUCT OVERVIEW

1 PRODUCT OVERVIEW

SAM8 PRODUCT FAMILY

Samsung's SAM8 family of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU with a wide
range of integrated peripherals, in various mask-programmable ROM sizes. Analog its major CPU features are:

— Efficient register-oriented architecture
— Selectable CPU clock sources
— Idle and Stop power-down mode release by interrupt
— Built-in basic timer with watchdog function

The sophisticated interrupt structure recognizes up to eight interrupt levels. Each level can have one or more
interrupt sources and vectors. Fast interrupt processing (within a minimum of six CPU clocks) can be assigned to
specific interrupt levels.

S3C8625/C8627/C8629/P8629 MICROCONTROLLERS

S3C8625/C8627/C8629/P8629 single-chip 8-bit
microcontrollers are based on the powerful SAM8
CPU architecture. The internal register file is logically
expanded to increase the on-chip register space.
S3C8625/C8627/C8629/P8629 contain 16/32 K bytes
of on-chip program ROM.

In line with Samsung's modular design approach, the
following peripherals are integrated with the SAM8
core:

— Four programmable I/O ports (total 27 pins)
— One 8-bit basic timer for oscillation stabilization

and watchdog functions

— One 8-bit general-purpose timer/counter with

selectable clock sources

— One 12-bit counter with selectable clock sources,

including Hsync or Csync input
— One interval timer
— PWM block with seven 8-bit PWM circuits
— Sync processor block (for Vsync and Hsync I/O,

Csync input, and Clamp signal output)
— DDC and normal Multi-master IIC-bus
— 4-channel A/D converter (8-bit resolution)

S3C8625/C8627/C8629/P8629 are a versatile
microcontrollers which are ideal for use in multi-sync
monitors or in general-purpose applications that
require sophisticated timer/counter, PWM, sync
signal processing, A/D converter, and multi-master
IIC-bus support with DDC. They are available in a 42­pin SDIP or a 44-pin QFP package.

OTP

S3C8625/C8627/C8629 microcontrollers are also available in OTP (One Time Programmable) version named,
S3P8629. S3P8629 microcontroller has an on-chip 32-Kbyte one-time-programmable EPROM instead of masked
ROM. S3P8629 is comparable to S3C8625/C8627/C8629, both in function and pin configuration except its ROM
size.

1-1

PRODUCT OVERVIEW S3C8625/C8627/C8629/P8629

FEATURES

CPU

• SAM8 CPU core

Memory

• 16/24/32-Kbyte internal program memory (ROM)

• 464-byte general-purpose register area

Instruction Set

• 78 instructions

• IDLE and STOP instructions added for
power-down modes

Instruction Execution Time

• Minimum 500 ns (with 12 MHz CPU clock)

Interrupts

• Ten interrupt sources

• Ten interrupt vectors

• Seven interrupt level

• Fast interrupt feature

Pulse Width Modulator (PWM)

• 8-bit PWM: 7-CH

Sync-Processor Block

• Vsync-I, Hsync-I, Csync-I input and Vsync-O,
Hsync-O, Clamp-O output pins

• Pseudo sync signal output

• Auto SOG detection

• Auto Hsync polarity detection

DDC Multi-Master IIC-Bus 1-Ch

• Serial Peripheral Interface

• Support for Display Data Channel

(DDC1/DDC2B/DDC2Bi/DDC2B+)

Normal Multi-Master IIC-Bus 1-Ch

• Serial Peripheral Interface

A/D Converter

• 4-channel; 8-bit resolution

General I/O

• Four I/O Ports (total 27pins)

8-Bit Basic Timer

• Programmable timer for oscillation stabilization
interval control or watchdog timer function

• Three selective internal clock frequencies

Timer/Counters

• One 8-bit Timer/Counter with several clock
sources (Capture mode)

• One 12-bit Counter with H-sync and several clock
sources

• One Interval Timer

Oscillator Frequency

• 8 MHz to 12 MHz crystal operation

• Internal Max. 12 MHz CPU clock

Operating Temperature Range

• – 40 °C to + 85 °C

Operating Voltage Range

• 4.0 V to 5.5 V

Package Types

• 42-pin SDIP, 44-pin QFP

1-2

S3C8625/C8627/C8629/P8629 PRODUCT OVERVIEW

BLOCK DIAGRAM

X

X

OUT

PWM0

•

•

•

•

PWM6

Vsync-I
Hsync-I
Csync-I

Vsync-O

Hsync-O

Clamp-O

MT0CAP

INT0-INT2

IN

RESET

MAIN

OSC

8-BIT
PWM

(7-CH)

Sync-

Processor

8-Bit

Counter

(Timer M0)

P0.0−P0.7/INT0−INT2

PORT 0

INTERNAL BUS

I/O PORT and INTERRUPT

CONTROL

SAM8 CPU

16/24/32-

Kbyte

ROM

P2.0−P2.7

PORT 2

464-Byte

Register File

VDD, AVREF
V

, V

SS1

TEST

PORT 1

PORT3

ADC

Multi

Master

IIC-Bus

SS2

P1.0–P1.2

P3.0–P3.7

AD0−AD3

SCL1
SDA1

12-Blt

Counter

(Timer M1)

MT1CK

Interval

Timer

(Timer M2)

Multi Master IIC-Bus

and DDC1/2B/2Bi/2B+

SCL0 SDA0

Figure 1-1. Block Diagram

1-3

PRODUCT OVERVIEW S3C8625/C8627/C8629/P8629

PIN ASSIGNMENTS

P0.0/INT0
P0.1/INT1
P0.2/INT2

P0.3

P0.4/TM0CAP

P0.5/TM1CK

P0.6
P0.7

P1.0/SDA1

P1.1/SCL1

V

DD

V

SS1

X

OUT

X

TEST

SDA0

SCL0

RESET

P1.2
P2.0/PWM0
P2.1/PWM1

1
2
3
4
5
6
7
8
9
10
11
12
13
14

IN

15
16
17
18
19
20
21

S3C8625/

C8627/C8629

42-SDIP

(Top View)

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

P3.7
P3.6
P3.5
P3.4
P3.3/AD3
P3.2/AD2
P3.1/AD1
P3.0/AD0
AVREF
V

SS2

P2.7/Csync-I
Hsync-I
Vsync-I
Vsync-O
Hsync-O
Clamp-O
P2.6/PWM6
P2.5/PWM5
P2.4/PWM4
P2.3/PWM3
P2.2/PWM2

1-4

Figure 1-2. S3C8625/C8627/C8629 42-SDIP Pin Assignment

S3C8625/C8627/C8629/P8629 PRODUCT OVERVIEW

P0.4/TM0CAP

P0.0/INT0

P0.1/INT1

P0.2/INT2

P3.3/AD3

P0.5/TM1CK

P0.6
P0.7

P1.0/SDA1

P1.1/SCL1

VDD

V

SS1

X

OUT

TEST

SDA0

XIN

P0.3

41

42

43

44

1
2
3
4
5
6
7
8
9
10
11

15

14

13

12

P2.0/PWM0

P1.2

RESET

SCL0

N.C.

39

40

S3C8625/

C8627/C8629

44-QFP

(Top View)

17

16

N.C.

P2.1/PWM1

P3.6

P3.7

37

38

19

18

P2.3/PWM3

P2.2/PWM2

P3.4

P3.5

34

35

36

22

21

20

P2.6/PWM6

P2.5/PWM5

P2.4/PWM4

33
32
31
30
29
28
27
26
25
24
23

P3.2/AD2
P3.1/AD1
P3.0 / AD0
AVREF
V

SS2

P2.7/Csync-I
Hsync-I
Vsync-I
Vsync-O
Hsync-O
Clamp-O

Figure 1-3. S3C8627/C8629 44-QFP Pin Assignment

1-5

PRODUCT OVERVIEW S3C8625/C8627/C8629/P8629

PIN DESCRIPTIONS

Table 1-1. S3C8625/C8627/C8629/P8629 Pin Descriptions

Pin

Names

P0.0
P0.1
P0.2
P0.3
P0.4

Pin

Type

Description

I/O General-purpose, 8-bit I/O port. Shared

functions include three external interrupt
inputs and I/O for timer M0 and M1.
Selective configuration of port 0 pins to

input or output mode is supported.
P0.5
P0.6
P0.7

P1.0
P1.1
P1.2

I/O General-purpose, 3-bit I/O port. Selective

configuration is available for port 1 pins to

input, push-pull output, n-channel open-

drain mode, or IIC-bus clock and data I/O.
P2.0

P2.1
P2.2
P2.3
P2.4

I/O General-purpose, 8-bit I/O port Selective

configuration of port 2 pins to input or

output mode is supported. The port 2 pin

circuits are designed to push-pull PWM

output and Csync signal input.
P2.5
P2.6
P2.7

P3.0–P3.3
P3.4–P3.7

I/O General-purpose, 8-bit I/O port Selective

configuration port 3 pins to input or output

mode is supported. Multiplexed for

alternative use as A/D converter inputs

AD0–AD3.
Hsync-I

Vsync-I
Clamp-O
Hsync-O
Vsync-O
SDA0
SCL0

VDD, V

SS1

AVREF, V

XIN, X

OUT

RESET

,

SS2

I

The pins are sync processor signal I/O, IIC-

I

bus clock, and data I/O.

O
O

O
I/O
I/O

– Power pins

ADC power pins

– System clock I/O pins – 14, 13 –

I System reset pin B 18 –

TEST I Factory test pin input

0V:Normal operation,5V:Factory test mode

Pin

Circuit

Type

D-1
D-1
D-1
D-1
D-1
D-1
D-1
D-1

E-1
E-1
E-1

D-1
D-1
D-1
D-1
E-1
E-1
E-1
D-1

D-1

E

A
A
A
A

A
G-3
G-3

–
–

SDIP Pin
Numbers

1
2
3
4
5
6
7
8

9
10
19

20
21
22
23
24
25
26
32

35–38,

39–42

31
30
27
28
29
16
17

11, 12
34, 33

– 15 –

Shared

Functions

INT0
INT1
INT2

TM0CAP

TM1CK

SDA1
SCL1

PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6

Csync-I

AD0–AD3

–

–

1-6

S3C8625/C8627/C8629/P8629 PRODUCT OVERVIEW

PIN CIRCUITS

V

DD

V

DD

Data or
Other
Function

Output

RESET

Data

V

SS

Output

Figure 1-4. Pin Circuit Type A

V

DD

280 K

Ω

Noise Filter

Output
Disable

Digital Input
TTL Input
or ADC Input

Figure 1-6. Pin Circuit Type D-1

V

SS

Figure 1-5. Pin Circuit Type B (RESETRESET)

1-7