PT0137(08/04)

Ver:4

21

Data Sheet

PT8R1202

PT

Peric om Technology Inc .

Bluetooth Digital Audio Streaming IC

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UART interface

UARTTX, UARTRX, UARTRTS, and UARTCTS form a conventional asynchronous data serial port. The interface is designed

to operate correctly when connected to other UART devices such as NS16550A. The signaling levels are 0V and 3.3V. The

interface is programmable over a variety of bit rates. It supports many configurations such as no, even or odd parity, one or two

stop bit, number of bit in a frame, break conditions, and hardware flow control on or off. The maximum UART data rates is

1.8Mb/s. Two-way hardware control is implemented by UARTRTS and UARTCTS. If input UARTCTS signal becomes high,

transmission will be stopped, else it will be continued. If internal UART FIFO will be full, output UARTRTS signal becomes

high, else becomes low.

Flash Card interface

PT8R1202 supports two types of flash card such as SmartMedia flash devices and MMC or SDCard flash devices. This flash

card devices are small removable cards that contain one or two NAND Flash devices. Alternatively, the system designer can use

non-removable NAND flash chips. PT8R1202 supports hardware interface logic for SmartMedia devices, but only supports

software firmware using GPIO for MMC or SDCard. The SmartMedia electrical interface uses an 8-bit data/address bus and

6-bit control lines. PT8R1202 supports up to 4GB SmartMedia devices.