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PDF S3P8849 Data sheet ( Hoja de datos )
| Número de pieza | S3P8849 | |
| Descripción | SAM87 family of 8-bit single-chip CMOS microcontrollers | |
| Fabricantes | Samsung semiconductor | |
| Logotipo |  |
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omS3C8847/C8849/P8849
1 taSheet4U.cPRODUCT OVERVIEW
www.DaSAM87 PRODUCT FAMILY
PRODUCT OVERVIEW
Samsung's SAM87 family of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a wide
range of integrated peripherals, and various mask-programmable ROM sizes. Important CPU features include:
m— Efficient register-oriented architecture
o— Selectable CPU clock sources
— Release of Idle and Stop power-down modes by interrupt
.c— Built-in basic timer circuit with watchdog function
UA 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
t4specific interrupt levels.
eS3C8847/C8849/P8849 MICROCONTROLLERS
eThe S3C8847 microcontroller has a 24-Kbyte on-chip program memory and the S3C8849 has a 32-Kbyte. Both
chips have a 272-byte general-purpose internal register file. The interrupt structure has nine interrupt sources
hwith nine interrupt vectors. The CPU recognizes seven interrupt priority levels.
SUsing a modular design approach, the following peripherals were integrated with the SAM87 core to make the
S3C8847/C8849/P8849 microcontrollers suitable for use in color television and other types of screen display
taapplications:
a— Four programmable I/O ports (26 pins total: 16 general-purpose I/O pins; 10 n-channel, open-drain
output pins)
.D— 4-bit resolution A/D converter (4 channels)
— 14-bit PWM output (Two channels: push-pull type, open-drain type)
w— Basic timer (BT) with watchdog timer function
— One 8-bit timer/counter (T0) with interval timer and PWM mode
w— One 8-bit general-purpose timer/counter (TA) with prescalers
w— On-screen display (OSD) with a wide range of programmable features, including halftone control
signal output
omThe S3C8847 and the S3C8849 are available in versatile 42-pin SDIP package.
U.cOTP
et4The S3C8847/C8849 microcontrollers are also available in OTP (One Time Programmable) version, named the
eS3P8849. The S3P8849 microcontroller has an on-chip 32-Kbyte one-time-programmable EPROM instead of a
hmasked ROM. The KS88P8432 is comparable to the S3C8847/C8849, both in function and pin configuration.
www.DataS 1-1
1 page  
S3C8847/C8849/P8849
PRODUCT OVERVIEW
PIN DESCRIPTIONS
Pin Name
P0.0–P0.3
P0.4–P0.5
P0.6–P0.7
P1.0–P1.3
P1.4–P1.5
P1.6–P1.7
P2.0–P2.7
P3.0–P3.1
Pin
Type
I/O
I/O
I/O
I/O
Table 1-1. S3C8847/C8849/P8849 Pin Descriptions
Pin Description
General I/O port (4-bit), configurable for
digital input or n-channel open-drain, push-
pull output.
Pins can withstand up to 5 V loads.
General I/O port (2-bit), configurable for
digital input or push-pull output.
General I/O port (2-bit), configurable for
digital input or n-channel open-drain output.
P0.6–P0.7 can withstand up to 5 V loads.
Multiplexed for alternative use as external
inputs, ADC2–ADC3.
General I/O port (4-bit), configurable for
digital input or n-channel open-drain output.
P1.0–P1.3 can withstand up to 6 V loads.
Multiplexed for alternative use as external
interrupt inputs, INT0–INT3.
General I/O port (2-bit), configurable for
digital input or n-channel open-drain output.
P1.4–P1.5 can withstand up to 6 V loads.
High current port(10mA)
General I/O port (2-bit), configurable for
digital input or push-pull output.
Each pin has an alternative function.
P1.7: T0CK (Timer 0 clock input)
General I/O port (8-bit). Input/output mode
or n-channel open-drain, push-pull output
mode are software configurable. Pins can
withstand up to 5 V loads.
Each pin has an alternative function.
P2.0: PWM5 (8-bit PWM output)
P2.1: PWM1 (14-bit PWM output)
P2.2: PWM2 (8-bit PWM output)
P2.3: PWM3 (8-bit PWM output)
P2.4: PWM4 (8-bit PWM output)
P2.5: PWM0 (14-bit PWM output)
P2.6: T0 (Timer 0 PWM and interval output)
P2.7: OSDHT (Halftone signal output)
General I/O port (2-bit), configurable for
digital input or n-channel open-drain output.
P3.0–P3.1 can withstand up to 5 V loads.
Multiplexed for alternative use as external
inputs ADC0–ADC1.
Circuit
Type
2
3
6
7
5
3
2
6
Pin
Numbers
39–42
Share
Pins
(see pin
description)
38, 35
11–12 ADC2–ADC3
14–17 INT0–INT3
18–19
20, 8
T0CK
1–7, 21
PWM0–
PWM5
T0, OSDHT
9–10 ADC0–ADC1
1-5
5 Page 
S3C8847/C8849/P8849
2 ADDRESS SPACES
ADDRESS SPACES
OVERVIEW
The S3C8847 and S3C8849 microcontrollers have two kinds of address space:
— Internal program memory (ROM)
— Internal register file
The S3C8847 has an on-chip 24-Kbyte mask-programmable ROM; the S3C8849 has a 32-Kbyte. An external
memory interface is not implemented.
There are 272 general-purpose 8-bit data registers in the register file. Thirteen 8-bit registers are used for CPU
and system control. To support peripheral, I/O, and clock functions, there are 20 control registers and 9 data
registers. In addition, there is a 252 × 13-bit area for on-screen display (OSD) video RAM.
2-1
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet S3P8849.PDF ] | |
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