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ST2204 датащи(PDF) 2 Page - Sitronix Technology Co., Ltd.

номер детали ST2204
подробное описание детали  8 BIT Integrated Microcontroller with 512K Bytes ROM
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производитель  SITRONIX [Sitronix Technology Co., Ltd.]
домашняя страница  http://www.sitronix.com.tw
Logo SITRONIX - Sitronix Technology Co., Ltd.

ST2204 датащи(HTML) 2 Page - Sitronix Technology Co., Ltd.

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ST2204
Ver 0.6
2/24
2008/11/10
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The ST2204 is a 8-bit integrated microcontroller designed with
CMOS silicon gate technology. The true static CPU core, power
down modes and dual oscillators design makes the ST2204
suitable for power saving and long battery life designs. The
ST2204 integrates various logic to support functions on-chip
which are needed by system designers. This is also important
for lower system complexity, small board size and, of course,
shorter time to market and less cost.
The ST2204 features the capacity of memory access of
maximum 44M bytes which is needed by products with large
data bases, and also DMA function for fast memory transfer.
Six chip selects are equipped for direct connection to external
ROM, SRAM, Flash memory or other devices. Maximum one
single device of 16M bytes is possible.
The ST2204 has 48 I/Os grouped into 6 ports, Port-A ~ Port-E
and Port-L. Each pin can be programmed to input or output.
There are two options: pull-up/down for inputs of Port-C and
only pull-up for inputs of the other ports. In case of output,
there are open-drain/CMOS options for outputs of PortC and
only CMOS for the other ports. Port-A/B is designed for
keyboard scan with de-bounce and transition triggered interrupt
at Port-A, while Port-C/D/E/L are shared with other system
functions. All the properties of I/O pins are still programmable
when they are assigned to another function. This enlarges the
flexibility of the usage of function signals.
The ability of driving large LCD panels, up to 320x240, and
hardware/software gray-level support may rich the display
information and the diversity of contents as well. This is done
with no need of external display RAM because of the internal
memory sharing design. The variable LCD buffer design also
make large panel size with little internal RAM possible. User
may free major internal RAM for computing or temporary
access while keeping the display content.
The ST2204 equips serial communication ports of one UART
and one SPI to perform different communications, ex.: RS-232
and IrDA, with system components or other products such as
PC, Notebook, and popular PDA. Three clocking outputs can
produce synthesized PWM signals or high frequency carrier for
IR remote control. This helps products become more useful in
our daily life.
The built-in two channel PSG/one channel PWM DAC are for
the production of key tone, melody, voice, and speech. Two
dedicated pins with large driving capacity can drive a
buzzer/speaker directly for minimum cost.
The ST2204 has one Low Voltage Detector (LVD) for power
management. The status of internal or external power can be
detected and reported to the management software.
Power bouncing during power on is a major problem when
designing a reliable system. The ST2204 equips Low Voltage
Reset function to keep whole system in reset status when
power is low. After the power backs to normal, the system may
recover its original states and keeps working correctly.
With these integrated functions inside, the ST2204 single chip
microcontroller is a right solution for PDA, translator, databank
and other consumer products.
Clock
Generator
OSC
Clock
Generator
OSCX
OSCI
OSCXI
OSCXO
XIO
VCC/GND
TEST1/2
Power On
Reset
RESET
A[22:0]
D[7:0]
8-bit
External
Memory
Bus
RD
W R
PSG /
PWM DAC
PSGO/PSGOB
8-bit Static
CPU
ROM
512K bytes
Baud Rate
Generator
DMA
Base Timer
8-bit
SRAM
10K bytes
WDT
Interrupt
Controller
Bank
Control
Logic
PA7~0
Port-A
De-bounce
Logic
Transition
Detector
PB7~0
Port-B
UART with
IrDA Mode
SPI
INTX/PC0
Port-C
SCK/PC1
MISO/PC2
MOSI/PC3
TXD0/PC6
Port-C
RXD0/PC7
Port-C
ICE2/3
Chip Select
Logic
MMD/CS0
Port-D
Timer 0/1
8-bit
Clocking
Output
Port-E
TCO0/PE0
PE7~2
Port-E
LCD
Controller
Port-L
LD[3:0]/PL3~0
CP/PL4
AC/PL5
LOAD1/PL6
FLM/PL7
TXD1/PD6
RXD1/PD7
Port-D
/PC5
DATA_READY
/PC4
SS
0
~
/PD4
1
~
CS5
/PD5
/A23
CS6
POFF
BLANK
TCO1/PE1
BCO/PE2
PVCC/PGND
XMD
LOAD2
Low Voltage
Detector
VIN
Low Voltage
Reset
/ICE1
LVR
FIGURE 2-1 ST2204 Block Diagram


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