TC9204M
Preliminary Data Sheet
Pin Listing (continued)
No.
Pin label
Type
Description
187
CarrBp
I/Opd Enable / disable carrier based backpressure for half -duplex mode.
'1' – Carrier based backpressure
‘0' – Collision based backpressure.
CarrBp is latched on reset
188
DisBkPr
I/Opd Setting this pin to ‘1’ will disable backpressure procedure for all half
duplex ports. DisBkPr is latched upon reset.
189
NC
190
FrcFdFc
I/Opd Setting this bit to ‘1’ will force flow control execution for 10/100Mbps,
no matter the auto negotiation result. FrcFdFc is latched upon reset.
191
Vss 3.3
G
Digital ground for I/O
192
DisFdFc
I/Opd Setting this bit to '1' will disable flow-control for full-duplex mode
(transmission of pause frames).
DisFdFc is latched upon reset.
193
DisBPBk
I/Opd Enable / disable backoff during backpressure.
'1' – No backoff executed. Another collision will be forced again after one
minimum IFG time following previous collision if carrier sense is
observed.
'0' – The MAC randomly chooses between 0 and 1 slot times of backoff.
DisBkBp is latched during the reset operation.
194
Vdd 2.0
P
Digital +2.0V power supply for core
195
Gnd
I
196
Vss 2.0
G
Digital ground for core
197
Gnd
I
198
NC
NA
Reserved for future use
199
NC
NA
Reserved for future use
200
NC
NA
Reserved for future use
201
NC
NA
Reserved for future use
202
Vdd 2.0
P
Digital +2.0V power supply for core
203
mdc
O
MDIO Clock.
204
mdio
I/Opu MDIO Data.
205
Vss 2.0
G
Digital ground for core
206
Scl
I/Opu EEPROM's serial clock.
207
Sda
I/Opu EEPROM's serial data.
208
Testint
I/Opd TestInt - '0' - switch normal mode(default)
TestInt -'1' - internal memory test mode.
Confidential.
13/49
July 29, 2003
Copyright © 2003, IC Plus Corp.
TC9204M-DS-R05
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