Kontron VM62 - Manual (Page 30)

VM62(A) / VM42(A) User’s Manual Chapter 2 Functional Description
Table 2.5.3.2: Further Explanation of 68(EN)360 Mnemonics
Group Signal Name Mneumonic Function
SCC Receive Data RXD4-RXD1 Serial receive data input to the SCCs (I)
Transmit Data TXD4-TXD1 Serial transmit data output from the SCCs (O)
Request to Send _RTS4-_RTS1 Request to send outputs indicate that the SCC is ready
to transmit data (O)
Clear to Send _CTS4-_CTS1 Clear to send inputs indicate to the SCC that data
transmission may begin (I)
Carrier Detect _CD4-_CD1 Carrier detect inputs indicate that the SCC should begin
reception of data (I)
Receive Start _RSTRT1 This output from SCC1 identifies the start of a receive
frame. Can be used by an Ethernet CAM to perform
address matching (O)
Receive Reject RRJCT1 This input to SCC1 allows a CAM to reject the current
Ethernet frame after it determines the frame address did
not match (I)
Clocks CLK8-CLK1 Input clocks to the SCCs, SMCs, SI, and the baud rate
generators (I)
IDMA DMA Request _DREQ2-
_DREQ1 A request (input) to an IDMA channel to start an
IDMA transfer (I)
DMA Acknowledge _DACK2-
_DACK1 An acknowledgement (output) by the IDMA that an
IDMA transfer is in progress (O)
DMA Done _DONE2-
_DONE1 A bidirectional signal that indicates the last IDMA
transfer in a block of data (I/O)
TIMER Timer Gate _TGATE2-
_TGATE1 An input to a timer that enables/disables the counting
function (I)
Timer Input TIN4-TIN1 Time reference input to the timer that allows it to
function as a counter (I)
Timer Output _TOUT4-
_TOUT1 Output waveform (pulse or toggle) from the timer as a
result of a reference value being reached (O)
SPI SPI Master-In
Slave-Out SPIMISO Serial data input to the SPI master (I); serial data
output from an SPI slave (O)
SPI Master-Out
Slave-In SPIMOSI Serial data output from the SPI master (O); serial data
input to an SPI slave (I)
SPI Clock SPICLK Output clock from the SPI master (O); input clock to
the SPI slave (I)
SPI Select _SPISEL SPI slave select input (I)
SMC SMC Receive Data SMRXD2-
SMRXD1 Serial data input to the SMCs (I)
SMC Transmit Data SMTXD2-
SMTXD1 Serial data output from the SMCs (O)
SMC Sync _SMSYN2-
_SMSYN1 SMC syncronization signal (I)
May 17, 1996 © 1995 PEP Modular Computers Page 2-15