SPEAR320-2 STMicroelectronics, SPEAR320-2 Datasheet - Page 20

• Manufacturer Part Number: SPEAR320-2
• Description: IC MPU ARM9 289LFBGA
• Manufacturer: STMicroelectronics
• Series: SPEAr®r

Specifications of SPEAR320-2

• Processor Type: ARM Microprocessor
• Speed: 333MHz
• Voltage: 1.14 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 289-LFBGA
• Processor Series: SPEAr320
• Core: ARM926EJ-S
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 333 MHz
• Operating Supply Voltage: 1.2 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Data Ram Size: 8 KB
• Interface Type: I2C, UART, USB, Serial
• Number Of Programmable I/os: 102
• Number Of Timers: 4
• Program Memory Size: 32 KB
• Program Memory Type: ROM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-10843

Architecture overview
3.19
3.19.1
3.19.2
3.19.3
3.20
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UARTs
The SPEAr320 has 3 UARTs with different capabilities.
UART0
Main features:
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UART1
Main features:
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UART2
Main features:
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JPEG CODEC
SPEAr320 provides a JPEG CODEC with header processing (JPGC), able to decode (or
encode) image data contained in the SPEAr320 RAM, from the JPEG (or MCU) format to
the MCU (or JPEG) format.
Separate 16 x 8 (16 locations deep x 8-bit wide) transmit and 16 x 12 receive FIFOs to
reduce CPU interrupts
Speed up to 3 Mbps
Hardware and/or software flow control
Modem interface signals
Separate 16 x 8 (16 location deep x 8-bit wide) transmit and 16x12 receive FIFOs to
reduce CPU interrupts
Speed up to 7 Mbps
Hardware flow control (in Small Printers and Automation Expansion modes only) and/or
software flow control
Separate 16 x 8 (16 location deep x 8-bit wide) transmit and 16x12 receive FIFOs to
reduce CPU interrupts
Speed up to 7 Mbps
Software flow control
Doc ID 16755 Rev 4
SPEAr320