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ST2204 bảng dữ liệu(PDF) 3 Page - Sitronix Technology Co., Ltd. |
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ST2204 bảng dữ liệu(HTML) 3 Page - Sitronix Technology Co., Ltd. |
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3 / 24 page  ST2204 Ver 0.6 3/24 2008/11/10 3 3.. S SIIG GN NA AL L D DE ES SC CR RIIP PT TIIO ON NS S TABLE 3-1 Signal Function Groups Function Group Pad No. Designation Description Power 18, 55, 94 VCC , PVCC VCC: Power supply for system PVCC: Power supply for PSGO and PSGOB Ground 23, 51, 52, 74 GND , PGND GND: System power ground PGND: Power ground for PSGO and PSGOB System control 15, 26 50,80 1,81 28 RESET , LVR /ICE1, ICE2/3, TEST1/2, MMD/ CS0 RESET : Active low system reset signal input LVR /ICE1: LVR : Low voltage reset signal output, connect this pin to RESET to make Low Voltage Reset function work. ICE1 : ICE1 function when in ICE mode TEST1/2, ICE2/3: Leave them open when normal operation MMD/CS0: Memory modes selection pin Normal mode: Enable internal ROM. MMD/ CS0 connects to GND. Emulation mode: Disable internal ROM. MMD/ CS0 connects to chip-select pin of external ROM. One resistor should be added between VCC and this pin. After reset cycles, MMD/ CS0 changes to be an output, and outputs signal CS0 . Clock 16, 19~22 XMD, XIO,OSCI OSCXO,OSCXI, , XMD: High frequency oscillator (OSC) mode selection input Low: Crystal mode. One crystal or resonator should be connected between OSCI and XIO High: Resistor oscillator mode. One resistor should be connected between OSCI and VCC OSCXI, OSCXO: Connect one 32768Hz crystal between these two pins when using low frequency oscillator 72, 73 WR , RD External memory R/W control signals 2~4, 85~93, 95~105 A[22:0] External memory address bus External memory bus signals 75~79, 82~84 D[7:0] External memory data bus PSG/PWM DAC 53, 54 PSGO, PSGOB PSG outputs. Connect to one buzzer or speaker Keyboard scan signal (return line) 24~25, 27,29~33 PA7~0 I/O port A GPIO 34~41 PB7~0 I/O port B Chip selects 64~69 1 ~ CS5 /PD4~0, CS6 /A23/PD5 I/O port D and chip-select outputs UART 48, 49, 70, 71 RXD0/PC7,TXD0/PC6, RXD1/PD7,TXD1/PD6 UART signals and I/Os SPI 43~47 DATA_READY /PC5 , SS /PC4 , MOSI/PC3 , MISO/PC2 , SCK/PC1 SPI signals and I/Os |
Số phần tương tự - ST2204 |
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Mô tả tương tự - ST2204 |
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