M68360QUADS-040 Hardware User’s Manual
OPERATING INSTRUCTIONS
19
3.2.11
DMARUN Indicator - LD9
The yellow DMARUN indicator is connected to AS* signal of the slave QUICC, this to indicate bus activity
of one of the QUICC’s DMA channels.
3.2.12
Ethernet TX Indicator - LD3
The green LED Ethernet Transmit indicator blinks whenever the EEST is transmitting data through one of
the Ethernet ports P3 or P4.
3.2.13
Ethernet RX Indicator - LD2
The green LED Ethernet Receive indicator blinks whenever the EEST is receiving data from one of the
Ethernet ports P3 or P4.
3.2.14
Ethernet CLSN Indicator LD4
The red LED Ethernet Collision indicator CLSN, blinks whenever a collision is detected in the AUI P3 port
or the TP P4 port, or a jabber condition is detected in TP mode.
3.2.15
Ethernet LIL Indicator - LD5
The yellow LED Ethernet Twisted Pair Link Integrity indicator - LIL, lights to indicate good link integrity on
the TP P4 port. The LED is off when the link integrity fails, or when the AUI port is selected.
3.2.16
Ethernet PLR Indicator - LD6
The red LED Ethernet TP Polarity indicator - PLR, lights if the wires connected to the receiver input of TP
P4 port are reversed. The LED is lit by the EEST, and remains on when the EEST has automatically
corrected for the reversed wires.
3.2.17
Ethernet JABB Indicator - LD1
The red LED Ethernet TP Jabber indicator - JABB, lights whenever a jabber condition is detected on the
TP P4 port.
3.2.18
POWER Indicator - LD7
The yellow POWER indicator, indicates the presence of the +5V supply at P5.
3.3
MEMORY MAP
At the beginning of each cycle, the chip-select generator of the slave QUICC determines the kind of
memory cycle and which device is selected. Cycle types and address spaces are determined for EC040
cycles by the Transfer Modifier lines TM0 - TM2 and the Transfer Type lines TT0 - TT1 and by Function
Codes FC0 - FC3 for QUICC’s DMA cycles. The cycle types and the devices that respond are described
in TABLE 3-1.
TABLE 3-1. EC040 Cycle Types and Responding Devices
TM(2:0)
TT(1:0)
Address Space
Responding Devices
000
00
Data cache Push
All
001
0X
User Data
All
010
00
User Program
All
011
00
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