MSM9405 Datasheet, PDF (1/30 Pages) OKI electronic componets – IrDA Communication Controller

E2F0007-18-11
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MSM9405
IrDA Communication Controller
This version: J_Man_S._M19₉9₄^P8₀^re₅^liminary
GENERAL DESCRIPTION
The MSM9405 is a communication controller conforming to IrDA, the international standard for
infrared data communication. The device covers the IrDA physical specifications Ver.1.0 and
1.1.
Since the device performs some of the functions concerning communication protocol control,
the load on the software (firmware) for protocol control can be reduced. By combining the
device with another microcontroller and an infrared transceiver module, a device provided
with IrDA-compliant communication function can be configured.
FEATURES
• Data transfer rates
IrDA 1.0
IrDA 1.1
: 2400, 9600 bps; 19.2, 38.4, 57.6, 115.2 kbps
: 0.576, 1.152, 4 Mbps
• Detection/removal for beginning of frame and end of frame (IrDA 1.0, 1.1)
Insertion for beginning of frame and end of frame (IrDA 1.0, 1.1)
• Generation/check for CRC (IrDA 1.0, 1.1)
• Host interface
8-bit data bus
DMA transfer
Interrupt
Address
Control signal
: D₀-D₇
: DREQ, DACK, TC
: INTR
: A₀-A₃
: CS, RD, WR
• Infrared module control signal : SD
• Built-in 32-byte transmit-receive FIFOs
• Power down mode
• Built-in oscillator circuit
• Crystal oscillation frequency : 18.432 MHz (other than 4 Mbps data rate)
: 48 MHz (when 4 Mbps data rate used)
• Operating voltage (V_DD)
: 2.7 to 3.6 V
• Package:
30-pin plastic SSOP (SSOP30-P-56-0.65-K) (Product name : MSM9405MB)
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