TMC2072-MT SMSC, TMC2072-MT Datasheet - Page 21

• Manufacturer Part Number: TMC2072-MT
• Description: IC CTRLR CIRC 100-TQFP DUAL MODE
• Manufacturer: SMSC
• Series: CircLink™r

Specifications of TMC2072-MT

• Controller Type: I/O Controller
• Interface: Transceiver
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 40mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1023

Peripheral Mode CircLink™ Controller
Datasheet
1.5.5
1.5.6
1.5.7
1.5.8
1.5.9
SMSC TMC2072
Data Bus Width Selection
(W16: Pin)
This pin selects the bit width of the data bus in Peripheral mode; H: 16-bit mode, L: 8-bit mode. In the 16-
bit mode, the LSB address in the CircLink is fixed to 0.
Data Bus Byte Swap
(nSWAP: Pin)
In Peripheral mode, this pin selects the data order at 8-bit access. CircLink registers are defined as 16-bit
width, but 8-bit access is available and in this case the assignment of lower/upper byte of registers and
odd/even numbers of the address can be changed. nSWAP=L assigns the lower byte to even number
address and the upper byte to odd number address, and nSWAP=H assigns the lower byte to odd number
address and the upper byte to even number address.
Data Strobe Polarity Specification
(nDSINV: pin)
In Peripheral mode, this pin selects the pin polarity of data strobe (nDS). It is active low with nDSINV = H
and active high with nDSINV = L.
Page Size Selection
(PS[1:0]: Pin/Register)
Selects page size per packet. The maximum number of nodes depends on the page size selection since
the packet buffer size is limited to 1 kBytes. There are two methods to specify the page size: either through
pin or register settings depending on INIMODE (bit 9); 0: selects pin, 1: selects register (The default is 0).
MAXID Number Setup
(MAXID[4:0]: Pin/Register)
The maximum node ID is set based on the number of nodes on the network. All nodes in a CircLink
network, therefore, should have the same maximum node ID. This optimizes the time required to
reconfigure the network. There are two methods to specify the maximum node ID, Either through pin or
register settings depending on INIMODE (bit 9); 0: selects pin, 1: selects register (The default is 0). If the
nDIAG pin is set to L as the exception, however, the maximum node ID is automatically set to the largest
value. For more details, refer to section 2.10 - Diagnostic Mode.
PS[1:0]
00
01
10
11
Page Size
256 Byte
128 Byte
64 Byte
32 Byte
DATASHEET
Page 21
Max Node Number
15 Node
31 Node
3 Node
7 Node
Revision 0.1 (06-07-07)