Signal Descriptions
2-16
MC68360 USER’S MANUAL
MOTOROLA
Table 2-8. Peripherals Signal Index (Continued)
Group
Signal Name
Mnemonic
Function
Timer Output
TOUT4–TOUT1
Output waveform (pulse or toggle) from the timer as a result of a ref-
erence 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 synchronization signal. (I)
SI
SI Receive Data
L1RXDA, L1RXDBchannel B.
SI Transmit Data
L1TXDA, L1TXDB Serial output from the TDM channel A or channel B.
SI Receive Clock
L1RCLKA,
L1RCLKB
Input receive clock to TDM channel A or channel B.
SI Transmit Clock L1TCLKA, L1TCLKBInput transmit clock to TDM channel A or channel B.
SI Transmit
Sync Signals
L1TSYNCA,
L1TSYNCB
Input transmit data sync signal to the TDM channel A or channel B.
SI Receive
Sync Signals
L1RSYNCA,
L1RSYNCB
Input receive data sync signal to TDM channel A or channel B.
IDL Interface Re-
quest
L1RQA, L1RQB
IDL interface request to transmit on the D channel. Output from the
SI.
SI Output Clock
L1CLKOA,
L1CLKOB
Output serial data rate clock. Can output a data rate clock when the
input clock is 2x the data rate.
SI Data Strobes
L1ST4– L1ST1
Serial data strobe outputs can be used to gate clocks to external de-
vices that do not have a built-in time slot assigner (TSA).
BRG
Baud Rate Genera-
tor Out 4–1
BRGO4–BRGO1
Baud rate generator output clock allows baud rate generator to be
used externally.
BRG Input Clock
CLK2, CLK6
Baud rate generator input clock from which BRG will derive the baud
rates.
PIP
Port B 15–0
PB15–PB0
PIP Data I/O Pins
Strobe Out
STRBO
This input causes the PIP output data to be placed on the PIP data
pins.
Strobe In
STRBI
This input causes data on the PIP data pins to be latched by the PIP
as input data.
SDMA
SDMA Acknowl-
edge 2–1
SDACK2–SDACK1Ethernet receive frame.