Datasheet

Physical Interfaces
Intel
®
Quark™ microcontroller D2000
Datasheet January 2016
24 Document Number: 333577-002EN
Interface Pin Name Type Description
depending on RS485 or RS232
mode of operation.
UART_A_RE Logic Output UART B Receiver Enable
(RS485 mode). Used to control
the differential receiver of
RS485 in platform/board.
Polarity is configurable. This is
multiplexed onto UART_B_CTS
pin depending on RS485 or
RS232 mode of operation.
UART_B_TXD Logic output UART B single-ended Transmit
data (RS232 or RS485). In
RS485 mode, differential driver
is outside SoC.
UART_B_RXD Logic input UART B single-ended Receive
data (RS232 or RS485). In
RS485 mode, differential
receiver is outside SoC.
UART_B_RTS Logic output UART B Request to send
(RS232)
UART_B_CTS
Logic input
UART B Clear to send (RS232)
UART_B_DE Logic Output UART B Driver Enable (RS485
mode). Used to control the
differential driver of RS485 in
platform/board. This is
multiplexed onto UART_B_RTS
pin depending on RS485 or
RS232 mode of operation.
UART_B_RE Logic Output UART A Receiver Enable
(RS485 mode). Used to control
the differential receiver of
RS485 in platform/board. This
is multiplexed onto
UART_B_CTS pin depending
on RS485 or RS232 mode of
operation.
Slave SPI
SPI_S_SCLK
Logic input
Slave SPI Clock
SPI_S_SDIN
Logic input
Slave SPI Receive data
SPI_S_SCS
Logic input
Slave SPI Slave Chip Select
SPI_S_SDOUT
Logic output
Slave SPI Transmit data
Master SPI
SPI_M_SCLK
Logic output
Master SPI Clock
SPI_M_TXD
Logic output
Master SPI Transmit data
SPI_M_SS[3:0]
Logic output
Master SPI Slave Selects
SPI_M_RXD
Logic input
Master SPI Receive data