Entity: SpiSlave

Diagram

time TPD_G sl CPOL_G sl CPHA_G positive WORD_SIZE_G sl clk sl rst sl sclk sl mosi sl selL slv(WORD_SIZE_G-1 downto 0) rdData sl rdStb sl miso slv(WORD_SIZE_G-1 downto 0) wrData sl wrStb

Description

Company : SLAC National Accelerator Laboratory

Description: Generic SPI Slave Module

This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to

the terms contained in the LICENSE.txt file.

Generics

Generic name Type Value Description
TPD_G time 1 ns
CPOL_G sl '0'
CPHA_G sl '1'
WORD_SIZE_G positive 16

Ports

Port name Direction Type Description
clk in sl
rst in sl
sclk in sl
mosi in sl
miso out sl
selL in sl
rdData in slv(WORD_SIZE_G-1 downto 0)
rdStb in sl
wrData out slv(WORD_SIZE_G-1 downto 0)
wrStb out sl

Signals

Name Type Description
r RegType
rin RegType
mosiSync sl
sclkSync sl
selLSync sl

Constants

Name Type Value Description
MAX_COUNT_C integer WORD_SIZE_G-1
REG_INIT_C RegType ( mosiLast => '0',
sclkLast => '0',
selLLast => '1',
shiftReg => (others => '0'),
shiftCnt => toSlv(MAX_COUNT_C,
log2(WORD_SIZE_G)),
gotSclk => '0',
wrStb => '0')

Types

Name Type Description
RegType

Processes

Instantiations