COM20022I-HT SMSC, COM20022I-HT Datasheet - Page 31

• Manufacturer Part Number: COM20022I-HT
• Description: IC CTRLR ARCNET 2KX8 RAM 48-TQFP
• Manufacturer: SMSC
• Series: ARCNETr

Specifications of COM20022I-HT

• Controller Type: ARCNET Controller
• Interface: Differential
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 65mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1003

10 Mbps ARCNET (ANSI 878.1) Controller with 2Kx8 On-Chip RAM
Datasheet
Note*:
*DATA REGISTER AT 16 BIT ACCESS
SMSC COM20022I
REGISTER
DATA
REGISTER
ADDRESS
ADDRESS
CONTROL
PTR HIGH
PTR LOW
SUB ADR
URATION
CONFIG-
NODE ID
STATUS
STATUS
NEXT ID
SETUP1
SETUP2
TENTID
COUNT
DATA*
DIAG.
DMA
BUS
This bit can be written and read.
BIT
15
15
RECON
D
RESET
RBUS-
(R/W)*
MODE
RI/TRI
DATA
TIM7/
CYC7
MSB
TID7
NID7
TMG
TC7/
W16
NXT
MY-
RD-
ID7
D7
A7
P1
BIT
14
14
D
BIT
13
13
CCHEN
D
DUPID
AUTO-
FOUR
NAKS
TIM6/
CYC6
TID6
NID6
TC6/
X/RI
NXT
INC
ID6
D6
A6
X
X
0
BIT
12
12
D
Table 6.1 - Read Register Summary
BIT
11
11
CKUP1
ITCEN/
D
RTRG
TXEN
CYC5
RCV-
TIM5/
X/TA
NID5
TID5
TC5/
ACT
NXT
ID5
A5
D5
X
X
0
DATASHEET
BIT
10
10
D
BIT
D9
TOKEN
CKUP0
RSYN/
GTTM
9
CYC4
TIM4/
RCV-
NID4
POR
TID4
TC8/
TC4/
NXT
ET1
ALL
ID4
A4
D4
X
0
Page 31
BIT
D8
READ
8
BIT
D7
(R/W)*
7
CKP3
CYC3
TEST
DMA-
DMA-
TIM3/
EXC-
NID3
TID3
MD1
TC3/
NAK
NXT
ET2
ID3
EN
A3
D3
EF
BIT
D6
6
RECON
TENTID
BIT
PLANE
D5
BACK-
SYNC
5
CKP2
CYC2
DMA-
TIM2/
SUB-
TID2
NID2
MD0
TC2/
AD2
NXT
NO-
A10
ID2
D2
A2
BIT
D4
4
TCPOL
NEXTID
BIT
D3
CYC1
CKP1
TIM1/
SUB-
SUB-
RCN-
3
NID1
TID1
TC1/
TMA
NEW
NXT
TM1
AD1
AD1
ID1
A9
A1
D1
BIT
D2
2
SLOW-
SWAP
BIT
RCM-
TIM0/
CYC0
D1
DRQ-
SUB-
SUB-
TID0
NID0
TC0/
ARB
LSB
AD0
AD0
NXT
TM2
POL
1
TTA
TA/
ID0
A0/
A8
D0
X
Revision 09-27-07
BIT
D0
0
ADDR
ADDR
07-0
07-1
07-2
07-3
07-4
07-5
07-6
00
01
02
03
04
05
06
04