LPC2109FBD64/01 NXP [NXP Semiconductors], LPC2109FBD64/01 Datasheet - Page 17

• Manufacturer Part Number: LPC2109FBD64/01
• Description: Single-chip 16/32-bit microcontrollers; 64/128/256 kB ISP/IAP flash with 10-bit ADC and CAN
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
Product data sheet
LPC2109_2119_2129_6
6.12.1 Features
6.12.2 Features available in LPC2109/2119/2129/01 only
6.13.1 Features
6.12 SPI serial I/O controller
6.13 SSP controller (LPC2109/2119/2129/01 only)
6.14 General purpose timers
The LPC2109/2119/2129 each contain two SPIs. The SPI is a full duplex serial interface,
designed to be able to handle multiple masters and slaves connected to a given bus. Only
a single master and a single slave can communicate on the interface during a given data
transfer. During a data transfer the master always sends a byte of data to the slave, and
the slave always sends a byte of data to the master.
Remark: This peripheral is available in LPC2109/2119/2129/01 only.
The SSP is a controller capable of operation on a SPI, 4-wire SSI, or Microwire bus. It can
interact with multiple masters and slaves on the bus. Only a single master and a single
slave can communicate on the bus during a given data transfer. Data transfers are in
principle full duplex, with frames of four to 16 bits of data flowing from the master to the
slave and from the slave to the master.
While the SSP and SPI1 peripherals share the same physical pins, it is not possible to
have both of these two peripherals active at the same time. Application can switch on the
fly from SPI1 to SSP and back.
The Timer/Counter is designed to count cycles of the peripheral clock (PCLK) or an
externally supplied clock and optionally generate interrupts or perform other actions at
specified timer values, based on four match registers. It also includes four capture inputs
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Compliant with Serial Peripheral Interface (SPI) specification.
Synchronous, Serial, Full Duplex communication.
Combined SPI master and slave.
Maximum data bit rate of
Eight to 16 bits per frame.
When the SPI interface is used in Master mode, the SSELn pin is not needed (can be
used for a different function).
Compatible with Motorola’s SPI, Texas Instrument’s 4-wire SSI, and National
Semiconductor’s Microwire buses.
Synchronous serial communication.
Master or slave operation.
8-frame FIFOs for both transmit and receive.
Four to 16 bits per frame.
Rev. 06 — 10 December 2007
1
8
of the input clock rate.
LPC2109/2119/2129
Single-chip 16/32-bit microcontrollers
© NXP B.V. 2007. All rights reserved.
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