Dual Mode CircLink™ Controller
Datasheet
Table 1- Pin Lists Sorted by Function
Pin
Count
Pin NO.
Peripheral Mode
Pin Name
Direction
nRESET
nCS
A0
A1
A2/ALE
A3/ALEPOL
A4
A5
nRD/nDS
nWR/DIR
D0/AD0
D1/AD1
D2/AD2
D3/AD3
D4/AD4
D5/AD5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
nINTR
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
BI
OUT
Standalone Mode
Pin Name
Direction
nRESET
SCM4
PO0/nPOSTR
Input Buffer
Pull-Up
Type
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
Internal
---
Output Buffer
Drive
Type
---
---
---
---
CPU Interface
1
38
2
120
3
124
4
126
5
127
6
2
7
3
8
4
9
8
10
10
11
13
12
14
13
15
14
16
15
18
16
19
17
21
18
22
19
23
20
24
21
26
22
27
23
29
24
30
25
34
26
35
27
40
Total:27
PO1
PO2
PO3
PO4
PO5
PO6
PO7
PI0/nPISTR
PI1
PI2
PI3
PI4
PI5
PI6
PI7
PI8
PI9
PI10
PI11
PI12
PI13
PI14
PI15
NSTUNLOC
IN
IN
3s
/
O
3s.O
3s.O
3s.O
3s.O
3s.O
3s.O
3s.O
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
T-NRM
---
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
4mA
Transceiver Interface
1
RXIN
46
2
TXEN
41
3
TXD
42
4
RXIN2
48
5
TXEN2
43
Total:5
IN
OUT
OUT
IN
OUT
RXIN
TXEN
TXD
RXIN2
TXEN2
IN
OUT
OUT
IN
OUT
Internal
---
---
T-NRM
---
---
---
---
4mA
4mA
---
---
Internal
---
T-NRM
---
4mA
Clock
1
2
3
Total:3
82
83
80
X1
X2
MCKIN
IN
OUT
IN
X1
X2
MCKIN
IN
OUT
IN
---
---
---
---
---
---
---
---
---
---
Internal
T-NRM
Revision 0.1 (03-29-06)
Page 10
SMSC TMC2074
DATASHEET
SMSC [ SMSC CORPORATION ]
