TMC2084-HD SMSC, TMC2084-HD Datasheet - Page 27

• Manufacturer Part Number: TMC2084-HD
• Description: Network Controller & Processor ICs DUAL MODE CircLink Cntlr
• Manufacturer: SMSC

Specifications of TMC2084-HD

• Product: Controller Area Network (CAN)
• Number Of Transceivers: 1
• Data Rate: 5 Mbps
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current (max): 25 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Standalone Mode CircLink
Datasheet
NOTE:
SMSC TMC2084
DATA4 3Ch/7Ch NSTCOM
Name
Register Description (DATA4: NST carry-related configuration)
NSTC3 - 0
ACHTFRQ
When the transmit trigger (TXTRG3-0) setting is set to “By the external trigger”, bypass is automatic. The
above-mentioned sampling frequency is the value when the input clock is 20 MHz. The sampling frequency
doubles when the input clock is 40 MHz, and half when the input clock is 10 MHz.
NSTCOMD
Adrs.
TM
Controller
Bit 7
These bits select the NST carry (default: NSTC3 - 0 = 0000)
0000: 1
0001: 2
0010: 3
0011: 4
1110: 15
1111: 16
Configures the sampling frequency for Anti-chatter circuit on input ports.
0: Sampling frequency is 1.22 kHz (default)
1: Sampling frequency is 19.1Hz (52 ms period)
Configures the output mode of NST carry (NST carry is outputted via nNSTCOUT)
0: Active low pulse output with the pulse Level Width resolution selected by the bits
1: Clock output with the duty ratio 50% (default)
D
: :
NSTPRE2 – 0
st
nd
rd
th
ACHTFR
th
th
digit (carry period = NST resolution X 2^1)
digit (carry period = NST resolution X 2^3)
digit (carry period = NST resolution X 2^4)
digit (carry period = NST resolution X 2^2)
Bit 6
digit (carry period = NST resolution X 2^15)
digit (carry period = NST resolution X 2^16)
Q
DATASHEET
Bit 5
0
:
Page 27
Bit 4
0
Bit 3
Bit 2
NSTC3 – 0
Bit 1
Revision 0.2 (10-23-08)
Bit 0