TMC2072_07 Datasheet, PDF (73/106 Pages) SMSC Corporation – Peripheral Mode CircLink™ Controller

Peripheral Mode CircLink™ Controller
Datasheet
COMR7-0011
[READ ONLY]
bit
15-5
*1
4-0
(Next ID Register)
name
--------
NEXTID4-0
init. value
0
all "0"
description
reserved (all "0")
Next Node ID
*1: Not equivalent to the ARCNET original specifications.
address:0Eh
SUBAD=0011
(Reduction the number of bits and function modifications)
NOTE: Do not write to this register.
- When reading: ARCNET NEXT ID register
NEXTID [4:0] ( bit 4 to 0)
It is possible for the node to read out value of the node ID that will send the token. In CircLink, the following
ID value is fixed to the ID value of the node + 1. In case of no response after sending token to the node of
ID value equaling to the node ID + 1 (absent receiver) and the token is passed to another node, the
NXTIDERR bit of the diagnostic register will be set to 1.
COMR7-0100 (Setup2 Register)
[READ/WRITE]
bit
Name
init. value
15-8
--------
0
*1
7
--------
0
*3
6
FARB
0
*1
5,4
--------
0,0
*1
3
--------
1
*1
2
--------
1
*2
1-0
RCNTM1-0
1,1
address:0Eh
SUBAD=0100
description
reserved (all "0")
reserved ("0")
reserved ("0")
reserved (all "0")
reserved ("0")
reserved ("0")
Reconfiguration (RECON) Timer 1,0
*1 Not equivalent to the ARCNET original specifications. (Reduction function )
*2 Not equivalent to the ARCNET original specifications. (Change initial value)
*3 Not equivalent to the ARCNET original specifications. (Addition of new function)
- When reading/writing: ARCNET Setup2 Register
FARB (bit 6)
Increases the speed of the RAM Access controller. In default setting, it sets the yes/no setting of temporary
relay reception of 128 byte/page during CKP=000 setting. For further details, please refer to section 2.9.1 -
Temporary Receive and Direct Receive.
0: 128-byte/page temporary relay reception denied (Default)
RAM Access controller input clock has a single-sided function.
1: 128-byte/page temporary relay reception allowed
RAM Access controller input clock has a double-sided function. Accordingly, the input clock must
be below 20 MHz.
SMSC TMC2072
Page 73
DATASHEET
Revision 0.1 (06-07-07)