ICS1894-32_1 Datasheet, PDF (25/53 Pages) Integrated Device Technology – 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE

ICS1894-32
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
Bit
Definition
When Bit = 0
When Bit = 1
Access ² SF² Default³ Hex
20.11 ICS reserved
Read unspecified
Read unspecified
RW
–
1
F
20.10
1
20.9
1
20.8
LED2 Mode
000 = Link Integrity
20.7
001 = activity/no activity
010 = Transmit Data
20.6
011 = Receive Data
100 = Collision
101 = 10/100 mode
110 = Full Duplex
111 = OFF (Default LED2)
RW
1
1
E
1
20.5
LED1 Mode
000 = Link Integrity
20.4
001 = activity/no activity
010 = Transmit Data
20.3
011 = Receive Data
100 = Collision
101 = 10/100 mode (Default LED1)
110 = Full Duplex
111 = OFF
RW
1
0
1
9
20.2
LED0 Mode
000 = Link Integrity
20.1
001 = activity/no activity (Default LED0)
010 = Transmit Data
20.0
011 = Receive Data
100 = Collision
101 = 10/100 mode
110 = Full Duplex
111 = LINK_STAT
RW
0
0
1
Register 21h - Extended Control Register
21.15:0 RXER_CNT
Receive error count for RMII mode
RW
0
Register 22h - Extended Control Register
22.15 Interrupt output enable Disable interrupt output Enable interrupt output
RW
0
0
22.14 Interrupt flag read clear Interrupt flag clear by Interrupt flag clear by read RW
0
enable
read disable
enable
22.13
Interrupt polarity
Output low when
Output high when
RW
0
interrupt occur
interrupt occur
22.12 Interrupt flag auto clear Interrupt flag unchanged Interrupt flag cleared
RW
0
enable
when interrupt condition when interrupt condition
removed
removed
IDT® 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
25
ICS1894-32 REV G 020509