MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 1215

• Manufacturer Part Number: MPC8536E-ANDROID
• Description: HARDWARE/SOFTWARE ANDROID OS
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC ™r
• Type: MPUr

Specifications of MPC8536E-ANDROID

• Contents: Board
• For Use With/related Products: MPC8536
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 18
Enhanced Serial Peripheral Interface
The enhanced serial peripheral interface (eSPI) allows the device to exchange data with peripheral devices
such as EEPROMs, real-time clocks, A/D converters, and ISDN devices. The eSPI is a full-duplex,
synchronous, character-oriented channel that supports a simple interface (receive, transmit, clock and chip
selects). The eSPI consists of transmitter and receiver sections, an independent baud-rate generator, and a
control unit. The transmitter and receiver sections use the same clock, which is derived from the eSPI baud
rate generator in master mode. During an eSPI transfer, data is sent and received simultaneously.
The eSPI receiver and transmitter each have a FIFO of 32 bytes, as shown in
Figure
18-1. When the eSPI
is disabled in the eSPI mode register (SPMODE[EN] = 0), it consumes little power.
18.1
Introduction
The eSPI block diagram is shown in
Figure
18-1.
Peripheral Bus
eSPI Mode Register
Transmit_Register
Receive_Register
Transmit_FIFO
Receiver_FIFO
Counter
Shift_Register
RxD
IN_CLK
TxD
CCB clock / 2
SPIBRG
Signal Interface
SPI_MOSI
SPI_MISO
SPI_CLK
Figure 18-1. eSPI Block Diagram
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
Freescale Semiconductor
18-1