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| 型號： | MEA224AG |
| 廠商： | CONEXANT SYSTEMS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PBGA352 |
| 封裝： | 35 X 35 MM, 2.33 MM HEIGHT, PLASTIC, MS-034, BGA-352 |
| 文件頁數(shù)： | 25/29頁 |
| 文件大?。?/td> | 519K |
| 代理商： | MEA224AG |
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PRELI
MI
NARY
D
A
TA
S
H
EET
XpressFlow-2001 Series –
EA-224
Ethernet Switch Chip-set
4-Port 10/100M Ethernet Access Controller
1997 Zarlink Semiconductor Inc.
Page: 4
Rev. 4.0 –December, 1997
3.2 Pin Assignment (Preliminary)
Note:
#Active low signal
Input
Input signal
I-ST
Input signal with Schmitt-Trigger
Output
Output signal (Tri-State driver)
Out-OD
Output signal with Open-Drain driver
I/O-TS
Input & Output signal with Tri-State driver
I/O-OD
Input & Output signal with Open-Drain driver
5VT
Input with 5V Tolerance
?
Output signal with programmable polarity.
@
Input or output pins with weak internal pull up resistors (50k to 100k Ohms each)
A
These pins are reserved for internal use only. They should be left unconnected.
Pin No(s).
Symbol
Type
Max
IOL / IOH Name & Functions
Management Bus Interface
J25,K26,L24,K25,L26,
M24,L25,M26,N24,M25,
P24,N26,N25,R24,P26,
P25
P_D[15:0]
TTL I/O-TS
(5VT)
16mA
Management Bus – Data Bit [15:0]
C26,D24,C25,E24,D26,
D25,F24,E26,E25,G24,
F26
P_A[11:1]
TTL In (5VT)
Management Bus – Address Bit [11:1]
F25
P_ADS#
TTL In (5VT)
Management Bus – Address Strobe
H25
P_RWC
TTL In (5VT)
Management Bus – Read/Write Control
J24
P_RDY#
TTL Out-OD
16mA
Management Bus – Data Ready
G25P_BS16#
TTL Out-OD
16mA
Management Bus – 16 bit Data Bus
G26P_CS#
TTL In (5VT)
Management Bus – Chip Select
H26
P_INT
? CMOS Output
4mA
Management Bus – Interrupt Request
J26
P_RST#
TTL In-ST
(5VT)
Management Bus – Master Reset
K24
P_CLK
TTL In (5VT)
Management Bus – Bus Clock
XpressFlow Bus Interface
C23,A23,B22,C22,A22
S_D[31:27] /
P_C[0:4]
CMOS I/O-TS
12 mA
XpressFlow Bus – Data Bit [31:27] or
Management Bus Interface Configuration
bit [0:4]
B21,D20,C21,A21,B20,
A20,C20,B19,A19,C19,
B18,A18,B17,C18,A17,
D17,B16,C17,A16,B15,
A15,C16,B14,D15,A14,
C15,B13
S_D[26:0]
CMOS I/O-TS
12mA
XpressFlow Bus – Data Bit [26:0]
B12
S_MSGEN#
CMOS I/O-TS
12 mA
XpressFlow Bus – Message Envelope
A12
S_EOF#
CMOS I/O-TS
12mA
XpressFlow Bus – End of Frame
C14
S_IRDY
CMOS I/O-TS
12 mA
XpressFlow Bus – Initiator Ready
C13
S_TABT#
CMOS I/O-OD
12 mA
XpressFlow Bus – Target Abort
B23
S_HPREQ#
CMOS I/O-OD
12mA
XpressFlow Bus – High Priority Request
A24
S_REQ#
CMOS Output
4mA
XpressFlow Bus – Bus Request to
SC201
B24
S_GNT#
CMOS Input
XpressFlow Bus – Bus Grant from SC201
A13
S_OVLD#
CMOS Input
XpressFlow Bus – Bus Overload
D13S_CLK
CMOS Input
XpressFlow Bus – Clock
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