TC9204M
Preliminary Data Sheet
Pin Listing (continued)
No.
Pin label
Type
Description
Txd40
GMII/MII transmit data - least significant bit
165
Priclass40
I/Opd
Priority class - least significant bit. Sets priority level per port basis.
PriClass[4] - '00' - port 4 low priority
PriClass[4] - '01' - port 4 has normal priority
PriClass[4] - '10' - port 4 has high priority
PriClass[4] - '11' - port 4 has very high priority
PriClass[4] is latched on reset
Txen4
GMII/MII transmit enable
166
RejRDA
I/Opd
If this pin is set to '1' then all frames with 802.1D Reserved Group
Address or 802.3x Full Duplex PAUSE operation DA will be filtered
out. This setting is provided for testing purposes only and it is
recommended to set high during normal operation.
RejRDA is latched on reset.
167
gtxclk4
O
GMII transmit clock
168
Vdd 3.3
P
Digital +3.3V power supply for I/O
169
Txer4
I/Opd Transmit Error
170
Txclk4
I
MII transmit clock
171
Crs4
Is
MII carrier sense indication
172
Col4
Is
MII collision indication
173
Rxer4
Is
Receive Error
174
Vss 3.3
G
Digital ground for I/O
175
Rxclk4
I
MII receive clock
176
Rxdv4
Is
GMII/MII data valid
177
Rxd40
Is
GMII receive data - least significant nibble.
MII receive data
178
Rxd41
Is
GMII receive data - least significant nibble.
MII receive data
179
Rxd42
Is
GMII receive data - least significant nibble.
MII receive data
180
Rxd43
Is
GMII receive data - least significant nibble.
MII receive data
181
Rxd44
Is
GMII receive data - most significant nibble
182
Rxd45
Is
GMII receive data - most significant nibble
183
Rxd46
Is
GMII receive data - most significant nibble
184
Rxd47
Is
GMII receive data - most significant nibble
185
Vdd 3.3
P
Digital +3.3V power supply for I/O
186
FullBp
I/Opd During the normal operation, the backpressure process is executed
until flow control condition disappears or until the time limit for
backpressure is reached. The backpressure time limit is based in the
EEPROM’s BPTimeValue register.
When this configuration is ‘0’ the backpressure process will also be
limited from exceeding 28-consecutive collisions. The default value
(28) can be changed in the EEPROM settings.
FullBp is latched upon reset
Confidential.
12/49
July 29, 2003
Copyright © 2003, IC Plus Corp.
TC9204M-DS-R05
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